THURSDAY 9.10.2015BELL RINGER: Creating

Graphs and

Analyzing DataWhat

YOUR

Paper

should

look like!

Name TWO things the graph is missing

THURSDAY 9.10.2015Agenda:

Bellringer (graph analysis) Review rules for formatting the left side and

right-side of INB Review how setup Cornell Notes Place notes for “How to create a graph” on pg.

11 (or first available right-side pg.). Place Corresponding cut-outs on pg. 10 or corresponding leftside pg.

Class Practice problems Students create graphs of favorite subject

and/or sport

Review: How to properly format your notes

EQ: What are the Key Components of a Graph?

TAILS

Title: Should accurately describe what is being graphed.

X-Axis: Horizontal Y-Axis: Vertical Intervals: the numbers on the axes

are in consistent intervals and numerical order. Labels: the axes should be labeled to identify what is being measured

Scale: the numbers used are large to include the highest data plot

Room 506 Favorite SportsNumber of kids

Favorite Sport

WhatWhat

Title

Label for scale

Label for axis

Interval (counting by 5)

Scale (15 is enough)

X-Axis

Graphing and Variable Notes

Y-Axis

Check for Understanding

Speed (mph) Time (min)

5 1

10 2

15 3

18 4

25 5

20 6

Name the mistake that was made in these scales

(Hint, use the 3 rules you learned above about appropriate scale)

Example:

For the data table on the left, an appropriate scale is:

5, 10, 15, 20, 25

A. 5, 10, 15, 25, 20 Mistakes…. B. 5, 10, 15, 18 25

Mistakes:

C. 5, 15Mistakes

#2; NOT in numericalOrder! #1; Does NOT

have consistent interval!

#3; Does NOT fit Range!

What would be an appropriate scale of numbers to use when labeling our axis for speed?

•Check that all your X and Y axes are labeled

• Make sure to include UNIT! (ex. Ft, inches?)

•Make an appropriate scale and count by the same interval! (2, 4, 6, 8) (5, 10, 15, 20) (3, 6, 9, 12)

•CONCLUSION: Follow directions on your handout! Please check each bullet point off when you complete that! **DRAW AN ACTUAL CHECK MARK!*

Time to do YOUR graph!

FRIDAY 9.11.15

SWBAT: Extract important information from scientific graphs.

Take a moment to review your homework problems for accuracy. Secure the work into your notebook and ask any final questions.

Topic:Analyzing Graphs

EQ: How can we extract the important info from a graph?

Independent

Variable (IV)

Dependent

Variable (DV)

The factor (thing) that stands alone; or the thing a scientist changes the cause. Ex) Watering plants CAUSES them to grow

The factor (thing) a scientist measures; the effect. Ex) How much the plants grew after watering them

Dependent VariableRespondsY-axis

ManipulatedIndependent Variable X-axis

Examples of IV and DV in a Graph

What conclusions can we draw from the information presented in this graph?

How can we analyze data?

Look at the relationship between the two variables.What is happening with the two variables?

Directly proportional- As one variable increases, the other one increases as well

How can we analyze data?

Look at the relationship between the two variables.What is happening with the two variables?

Inversely proportional- As one variable increases, the other one decreases as well

LENSES

L= Label/List: (title, IV, DV, high and low points)

E= Equation (relationship between variables)

N= Notice (trends, properties, slope)

S= Speculate (predict) E= Explain/Evaluate (explain

prediction) S= Summary (content

learned in graph analysis)

WEEK 2. BELL RINGER:

Please KEEP this sheet all week! Turn in Friday!

What

YOUR

Paper

should

look like!

• On a graph, the independent variable is on the ________ and the dependent variable is on the ______.•An independent variable is….. ANSWER

BOTH QUESTIO

NS!

Conducting

Experiments

CONDUCTING EXPERIMENTSVocabulary Review Experiment

Variables: A factor that can change in an experiment. Control: What

we keep the same in order to make sure it

isn’t what’s causing the

effect.

Dependent Variable: The

variable that is affected.

Independent Variable: The variable that causes the

effect.

Please add this to your notes! *Use Cornell Note Style!*

Describe a

“Control”

Variable

In any experiment, we must be able to attribute the effect to a cause. All other variables that stay the same are called CONTROLLED VARIABLES. This means we should only change one variable at a time. Why

should we only

change ONE

variable at a time?

?

Controlled variable is a factor that stays the same so that results can be determined

Please add this to your notes! *Use Cornell Note Style!*

Describe an Independent Variable

Describe a dependent Variable

The factor (thing) a scientist changes the causeEx) Watering plants CAUSES them to grow

The factor (thing) a scientist measures; the effect. Ex) How much the plants grew after watering them

Independent & Dependent Variables Practice

1. Adding salt to water affects the temperature at which it boils.

2. Putting plants under the sunlight will allow them to grow more.

3. Eating too much chocolate gives you cavities.

4. Asking for help when I’m confused will help me understand difficult concepts.

1. Adding Salt; temperature to boil

2. Sunlight how much it grows.

3. Eating chocolate; your cavities.

4. Asking for Help; how well you understand difficult concepts.

Write the independent variable ; dependent variable

Group Practice

1. A student wanted to design an experiment that would examine the relationship between increased pollution and the frequency of asthma among middle school students. She visited three different regions: one urban, one suburban, and one rural. The levels of pollution were highest in the urban region and lowest in the rural region. She then surveyed middle schools in each region and collected the number of students with asthma in each.

The independent variable in this experiment is:

(C) Number of different regionsThe dependent variable is:

(D) Number of student w/ asthma

Group Practice #2

An experiment was carried out to determine how competition for food affects the survival rate of bacteria in a culture. Different amounts of food were given to equal amounts of bacteria in three different Petri dishes, A, B, and C. The least food was given to the bacterial culture in Petri dish A, more food was given to the bacteria in dish B, and the most was given to those in dish C. After several weeks the size of each bacterial culture was measured.

A) State your hypothesis… What do you THINK will happen

B) What is the DEPENDENT variable? *The one that is affected The amount of food OR How much the bacteria grew?

C) Was your hypothesis correct? WHY? *Use the pictures to help explain

GP #3 Try this alone, once my timer goes off we will go over this together!

A) Identify the independent variable in this experiment.

B) Identify the dependent variable in this experiment.

C) Why do you think the scientist believes the seeds exposed to the acid ran will take longer to grow?

D) Why DID the scientist keep all other conditions the same (sunlight, amount watered, ect.)?

GP #3 Try this alone, once my timer goes off we will go over this together!

A) Identify the independent variable in this experiment.

B) Identify the dependent variable in this experiment.

C) Why do you think the scientist believes the seeds exposed to the acid ran will take longer to grow?

D) Why does did the scientist keep all other conditions the same (sunlight, amount watered, ect.)?

Type of water given to the plantsHow fast the seeds germinated (grew)

Because…..

To have a CONTROL; to make sure that the type of water is what causes the difference in growth.

More Practice!

Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds.

He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non-microwaved mice were able to do the same.

Identify the-

1. Control Group

2. Independent Variable

3. Dependent Variable

4. What should Bart's conclusion be?

5. How could Bart's experiment be improved?