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### Chapter 8 Lesson 3 SPI S Who Can Give An Example of Deposition: Frost The main idea of this lesson is to learn what? How Matter Changes State. – PowerPoint PPT presentation

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Title: Chapter%208%20Lesson%203

1
Chapter 8 Lesson 3
• SPIS

2
Before we get started lets review
• What have we learned in our previous lessons in
Chapter 8?

3
Lesson 1 What is
matter Lesson 2 The Difference between
Physical and Chemical properties
4
Work with a partner Take a
few minutes to look at the photos and captions in
chapter 8 Lesson 3. See if you can figure out
the main idea of this lesson.
5
RAISE YOUR HAND IF YOU THINK YOU KNOW THE MAIN
IDEA OF LESSON 3.
6
IN THIS LESSON THE MAIN IDEA IS
HOW MATTER CHANGES STATE
7
HAVE YOU EVER WONDERED? Where water goes
when its boiled in a pot on the stove?
8
Who Can Tell Me What happens to a frozen
ice pop that is left in the sun?
9
These are both examples of how matter
changes state.
10
QUICK WHAT IS THE MAIN IDEA OF THIS
LESSON? JUST MAKING SURE YOURE PAYING ATTENTON
11
HOW MATTER CHANGES STATE!
12
Lets read Why It Matterson P. 306 to learn
more about how matter changes state.
13
VOCABULARY Learning a few new words
vaporization
melting
evaporation
condensation
sublimation
deposition
Thermal energy
14
VOCABULARY

condensation change of state from a gas to a
liquid as energy is removed.
15
VOCABULARY

deposition change of state from a gas to a
solid as energy is removed.
16
VOCABULARY

evaporation a slow or a gradual change from a
liquid to a gas.
17
VOCABULARY

melting change of state from a solid to a
18
VOCABULARY

sublimation change of state from a solid to a
19
VOCABULARY

thermal expansion increase in size of a
substance due to a change in temperature.
20
VOCABULARY

Vaporization (vay-pore-uh-zay-tion) change of
state from a liquid to a gas as energy is added.
21
Who can tell me what were learning in this
lesson?

Think man, think!!!
22

How Matter Change State IF you dont have it
yet, youll get it
Lets read Changes of State on P. 308
23

Question (Infer)
Why doesnt a glass of water freeze solid when
ice cubes are added to it?
24

The water has enough energy to melt the ice
cubes.
25

Question (Cause and Effect)
When the water on your skin evaporates, it makes
your skin feel cool. Explain what is happening in
terms of state changes and energy.
26

water, causing it to evaporate. Your body feels
cool because it is losing thermal energy.
27

Apply What Youre Learning
Lets say a scientist observes that water at the
surface of a small pond is frozen. A thermometer
indicates that the temperature at the bottom of
the pond is 4 degrees Celsius. Can she conclude
the pond is frozen all the way to the bottom?
Explain.
28

Apply What Youre Learning
We know that water freezes at 0 degrees Celsius.
Since the water at the bottom of the pond is 4
degrees Celsius, it is warmer than the freezing
point of water. So, the water at the bottom of
the pool is liquid.
29

Skipping a step (How does that happen?)
Sometimes, matter can skip the liquid
state!! Whats up with that?
30

Lets read PP. 310 and 311 to find out how
matter Can sometimes Skip the liquid state.
vocab. words sublimation and deposition. Use
context clues to better understand their meanings.
31

Sublimation A solid changes directly to a gas
without passing through the liquid state.
Who can give an example of sublimation?
32
Who can give an example of sublimation?
Dry Ice
33
Deposition The opposite of sublimation. It is
the change of state from gas to solid.
Who can give me an example of deposition?
34
Who Can Give An Example of Deposition
Frost
35
The main idea of this lesson is to learn what?
36
How Matter Changes State.
37
38
On a sheet of paper, answer questions 1-5 on P.
313. Remember to use complete sentences and
correct punctuation.
39
There will be a test over Chapter 8, so study,
study, study!!!
40
Okay, one last time What was the main idea of
lesson 3?
On the count of 3 lets all say it 123
41
HOW MATTER CHANGES STATE!!!
Way to go, champs!!!