60
Name: ___________________________ Date: ______________ Period: _______________ Scientific Instruments and Measurement S8.A.2.2 Getting the idea… Scientific instruments allow scientists to make observations and measurements. They allow the scientists to carry out the experiment. They can enhance your abilities, such as helping you see smaller or more distant objects than you ordinarily would be able to see. Tables A table displays information in rows and columns so that it is easier to read and understand. Tables are a quick way to pick out the facts or make comparisons. Table 4 – Endangered Animal Species in the US Year Number of Endangered Species 1980 174 1984 192 1988 245 1992 284 1996 324 Graphs A graph is used to collect, organize and summarize data in a visual way. A graph allows the relationship between data to be seen more clearly. There are three common types of graphs: Line Bar Circle Graphing Must Haves Every graph must have the following: Descriptive title Label on the x-axis Label on the y-axis Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or 0, 5, 10, 15) TEACHER COPY – RETURN TO TEACHER

TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

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Page 1: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 2: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 3: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 4: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 5: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 6: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 7: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 8: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 9: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 10: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 11: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 12: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 13: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 14: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 15: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 16: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 17: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 18: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 19: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 20: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 21: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 22: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 23: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 24: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 25: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 26: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 27: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 28: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 29: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 30: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 31: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 32: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 33: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 34: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 35: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 36: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 37: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 38: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 39: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 40: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 41: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 42: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 43: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 44: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 45: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 46: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 47: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 48: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 49: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 50: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 51: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 52: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 53: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 54: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs

Page 55: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Name: ___________________________ Date: ______________ Period: _______________

Scientific Instruments and Measurement

S8.A.2.2

Getting the idea…

� Scientific instruments allow scientists to make observations and

measurements.

� They allow the scientists to carry out the experiment.

� They can enhance your abilities, such as helping you see smaller or more

distant objects than you ordinarily would be able to see.

Tables

� A table displays information in rows and columns so that it is easier to read

and understand.

� Tables are a quick way to pick out the facts or make comparisons.

Table 4 – Endangered Animal

Species in the US

Year Number of

Endangered

Species

1980 174

1984 192

1988 245

1992 284

1996 324

Graphs

� A graph is used to collect, organize and summarize data in a visual way.

� A graph allows the relationship between data to be seen more clearly.

� There are three common types of graphs:

� Line

� Bar

� Circle

Graphing Must Haves

� Every graph must have the following:

� Descriptive title

� Label on the x-axis

� Label on the y-axis

� Numbers on the x or y axis must be evenly distributed (example 0, 2, 4, 6 or

0, 5, 10, 15)

TEACHER COPY – RETURN TO TEACHER

Page 56: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

0

100

200

300

400

1980 1984 1988 1992 1996

Nu

mb

er

of

spe

cie

s

Year

US Endangered Species per

Calendar Year

� The graph must take up the entire space

� In other words you must space your data out over the x and y axis

Line Graph

� A line graph shows the relationship between two variables.

� Both variables in a line graph must be numbers.

� Horizontal axis – x axis

� Independent variable

� Vertical axis – y axis

� Dependent variable

Bar Graph

� A bar graph uses rectangular blocks, or bars, of varying sizes to show the

relationships among variables.

� One variable is divided into parts

� The second variable must be a number

Page 57: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Circle Graph

� A circle graph shows the parts of a whole

� Circle graphs can be called pie graphs

� Each piece of the pie represents a fraction of the total

� To make a circle graph each piece must show a fraction of the circle or a

fraction of 360 degrees.

0

50

100

Nu

mb

er

of

Sp

eci

es

Animals

US Endangered Species

per Animal Group

Birds

26%

Fish

23%Mamals

21%

Clams

20%

Insects

10%US Endangered Species per

Calendar Year

Page 58: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Microscopes

� Microscope were designed in 1590

� They are used in making small objects appear larger

� Compound light microscopes – use lenses and mirrors to increase the size of

(magnify) the image you see

� They make images 2,000 times larger

Microscopes

� Electron microscopes – are larger, more powerful microscopes

� They magnify objects 450,000 times their size

� Use electrons instead of light

Microscopes

� Scanning tunneling microscope – creates a 3-D image of the specimen

Measurement

� Ruler – measures distance or length

� Length is the distance between two points

� Measuring tape – bends and can be wrapped around a curved object

Reading a Ruler

� 1/16”

� 1/8”

� ¼”

� ½”

� 1”

Reading a Ruler

� The larger numbers are centimeters

� The small lines are millimeters

� 10 millimeters (mm) = 1 centimeter (cm)

Mass

� Mass is the amount of matter in the object

� Larger objects kilogram (kg)

� Smaller objects gram (g)

� Pan balance

� Triple beam balance

� Both measure mass

Page 59: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Reading a triple beam balance

� First move the sliders to zero (0)

� The first beam reads in one gram

� The tick marks are 0.1 grams

� The second beam reads in 10 grams

� The third beam reads in 100 grams

� Once you move the sliders you must place it inside of the notch for an

accurate reading

� You will then move the sliders until the lines are even on the right side

� Add all numbers together

Density

� Density is a measure of the mass of an object divided by its volume

� Usually given in grams per cubic centimeter

� An object more dense than water will sink

� An object less dense than water will float

Time

� Stopwatch

� Clock

Volume

� Volume – the amount of space an object occupies

� Graduated Cylinder

� Read the meniscus – the lowest point in the dip of the liquid as it sits in the

graduated cylinder

� Beaker

Weight

� Weight is a measurement of force

� Spring Scale

Page 60: TEACHER COPY – RETURN TO TEACHER...A line graph shows the relationship between two variables. Both variables in a line graph must be numbers. Horizontal axis – x axis Independent

Thermometer

� Measures temperature

� Temperature is a measure of the energy of motion

� Three Scales

� Celsius

� Kelvin

� Fahrenheit

Binoculars and Telescope

� Reveal the details of faraway objects

Computers and Calculators

� Organize data and make graphs