Science Class

October 1st (A day)October 2nd (B Day)

Warm Up (use your notes)

• This is the chemical formula for glucose C6H12O6

• How many carbon atoms are there?• How many hydrogen atoms are there?• How many oxygen atoms are there?

Warm Up (use your notes)

• This is the chemical formula for glucose C6H12O6

• How many carbon atoms?• 6• How many hydrogen atoms?• 12• How many oxygen atoms?• 6

Important Dates…..

• Your next quiz will be on: • Friday, October 3rd (A day)• Monday, October 6th (B day)

• The quiz will be on 6.P.2.1 Matter

6.P.2.2

• On the next blank page in your notebook, write this title: 6.P.2.2 States of Matter • add entry to table of contents

6.P.2.2 States of Matter

• In this unit our objective is to:– Explain the effect of heat on the motion of

atoms through a description of what happens to particles during a change in phase

– Where is this objective in our room?

3 States of Matter

• Most substances can exist as a • Solid• Liquid• gas • Let’s think about water!

Water as an Example….

• As a Solid = ice (North and South Poles), snow• As a Liquid = in oceans, lakes, streams, rivers• As a gas = water vapor in atmosphere, tea pot

Today’s Lab

• We are trying to figure out what happens to the atoms that make up matter when it changes state…

• To investigate this, we will be investigating water in all 3 stats of matter

• We will also be investigating how a thermometer works

You will be working in groups…

• Go to the page in your notebook labeled 6.P.2.2 States of Matter,

• Write Thermometer Lab• Look closely at your thermometer. The liquid

inside is probably a type of alcohol that’s been dyed red.

You will be working in groups…

• Look closely at your thermometer. The thermometer has numbers on it. This is the range of temperatures that the thermometer will measure.

• Everyone record the range of temperatures now in your notebook (lowest temp. to highest temp.)

• -20 °C to 110 °C

Today’s Lab

• Practice reading the temperature in °C by having your eye at the same level as the top of the red liquid. What is the temperature?

• Each line = 1 °C• Everyone record the temperature now in

your notebook• This is the temperature in our room• The liquid is probably between 20 °– 30 °C

Today’s Lab

• Put your thumb or finger on the red bulb and see if the red liquid moves in the thin tube.

• Does the red liquid move?• Why do you think it moved?• It moved up because you are

warmer than our classroom temperature

Today’s Lab

• You will now receive a handout • Your group will determine the temperatures of

ice, cold water and room temperature water • You will write the temperature on your handout• You will also draw a picture of each state • For safety reasons I will stand near the boiling

hot water and call your group back one group at a time

Today’s Lab

• Now put the thermometer in room temperature water. Keep it in the cold water until the liquid stops moving. Record the temperature in °C.

• You will do this for ice cold water too

Today’s Lab

• I will help you place the thermometer in hot water and you will watch the red liquid. Keep it in the hot water until the liquid stops moving. Record the temperature in °C.

Today’s Lab

• Does anyone have any questions• You may start now

Brain Pop Video

• Video on “States of Matter”

• You are listening for how the atoms move in a solid, liquid, and a gas

• Add this to your handout when you hear the answers in the video

States of Matter

• Now turn your handout over• You will see 3 equal sections• Label section 1 : Solids• Label section 2: Liquids• Label section 3: Gases• You will copy the following information down

now

Solids

Fact #1: Has a definite volume

and shape

Fact #2: Atoms are packed

close together.

Fact #3: Atoms vibrate

a little

Add heat solid can become a liquid!!!

Check it out!!!!!

Liquids

Fact #1: Has a definite

volume, but not a definite shape

Fact #2: Particles

touch, but bounce around

Fact #3: Take the shape of

their container.

Add heat liquid can become a gas!!!

Check this out now!!!!

Gases

Fact #1: Has no definite volume or

definite shape

Fact #2: If not contained, gases will spread

out to fill the space

Fact #3: If contained,

theyWill take the

shape of their

container.

ComparingAll Three!!!

Draw the Atoms!

• Watch the atoms on the screen• Now draw the atoms in a solid, liquid, and

gas at the bottom of your handout

Handout

• Fold your handout in half • I will come around an staple it into your

notebook now

Prezi Video

• http://prezi.com/rxml51_apd_1/expansion-and-contraction/

• • http://www.youtube.com/watch?v=rMg1bmF

5BVo

Back to our thermometer lab…

• Based on what you know about the way molecules move in hot liquids, explain why the liquid in the thermometer goes up when heated?

• When heated, the molecules of the red liquid inside the thermometer move faster. This causes the molecules to spread a little further apart. They have nowhere to go other than up the tube.

Back to our thermometer lab…

• Based on what you know about the way molecules move in colder liquids, explain why the red liquid in the thermometer goes down when place in ice, cold water?

• When the thermometer is placed in ice, cold water, the molecules slow down and their attractions bring them a little closer together bringing them down the tube.

Back to our thermometer lab…

• Why do you think the tube which contains the red liquid is so thin?

• The red liquid is contained in a very thin tube so that a small difference in the movement of the atoms within the liquid will be noticeable.

Back to our thermometer lab…

• Why does the thermometer have a larger outer tube?

• The large outer tube has two purposes—to protect the fragile inner tube and act as a magnifier to help you better see the red liquid.

Bill Nye The Science Guy!

• https://www.youtube.com/watch?v=VdEmxInegfQ