1. Thermal Energy and States of Matter
Chapter 6 Section 3
Thermal Energy and States of Matter

2. Observations What is the matter in this beaker made of?
What states of this matter are present?
What will happen if it sits here for a while?

3. Three States of Matter
All _____ exists in 3 different forms, they are _______, _______ and _________
Are ice & liquid water made up of the same substance?
How are ice and liquid water different?

4. Three States of Matter

5. Solids
The _________ of a solid don’t move out of place, but they ________ back and forth in one place.
Solids have a fixed ______ & a fixed ________.

6. Liquids
The particles of a liquid ______ around, but they are still held _____.
Liquids don’t have a fixed ______ but do have a fixed ______.

7. Gases
The particles of gases move _______, & they don’t _____ together.
Gases don’t have a fixed ______ or _______.

8. Draw each & identify the state
Explain at least 3 differences between each picture. ?? ?? ?? ??

9. Changes of State
Changes of state depend on ______ ______ being absorbed or released.
What is thermal energy?
If you heat a solid, it will ________.

10. Changes of State What happens to matter when you take heat away?
If you take heat away from a liquid, it will ________.
If a liquid gains heat, it _____________.
If a gas loses heat, it __________.

11. Changes of State
During a change of state, the thermal energy of an object _____________, while the temperature ______ ____ _______.

12. Review What are the 3 states of matter?
How does a change of state happen?
What is the difference between boiling & evaporating a liquid?

13. Review Why does matter expand when it is heated?
How many different forms or states does matter exist in on Earth?
What is the temperature at which a solid changes into a liquid called?

14. Review
When vaporization only takes place at the surface of a liquid, that is called _____________.
What is the term used to describe the expansion of matter when it is heated?

15. Review What is one common way thermal expansion is used?
What happens to substances when they are cooled?
The most disorganized state of matter is the _____ state.

16. Review
During a change of state, the addition or loss of _________ energy changes the arrangement of particles in the substance.
A thermometer uses the ability of liquids like alcohol and mercury to ________ when heated.

17. Review
Boiling is vaporization that takes place at or ______ the surface of a liquid.
As a substance changes state, there is no change in the __________ of the substance, only in its thermal energy.

18. Review
In hot and dry places, fountains are used to cool down backyards, how does this happen?

19. Interactive Tutorials
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