1. Earth Science Intro Unit
States of Matter
Earth Science Intro Unit

2. What are the states of Matter?
I will be able to define and describe matter and the three states of matter.
What are the states of Matter?
Matter
1.All matter is made of atoms.
2. Atoms in constant motion.
3. Speed of a particle determines the state of matter.
States of Matter.
1. Solid
2. Liquid
3. Gas

3. What are the states of Matter?
I will be able to define and describe matter and the three states of matter.
What are the states of Matter?
Solids
1. Definite shape
2. Definite Volume
Atoms:
1. Very close together.
2. Vibrate in place.

4. What are the states of Matter?
I will be able to define and describe matter and the three states of matter.
What are the states of Matter?
Liquids
1. No definite shape
2. Definite volume
Atoms:
1. Further apart
2. Move, have more kinetic energy.

5. What are the states of Matter?
I will be able to define and describe matter and the three states of matter.
What are the states of Matter?
Gases
1. No definite shape:
2. No definite volume:
Atoms:
1. Moving very fast.
2. Most energetic particle
3. Most kinetic energy.
Move faster when heat is applied.
Move slower when heat is taken away

6. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Changes in States
A change of a substance from one physical state to another.
Examples:
1. Water vapor to liquid water.
2. Liquid water to ice.

7. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Energy Gained or Lost
1. To change state, energy must be added or removed.
2. Gaining or losing energy changes the temperature of a substance.

8. What happens to matter when a change of state occurs?
I will be able to explain what a change in state is and describe how matter changes state.
What happens to matter when a change of state occurs?
Energy / Motion of Particles.
1 Energy of the particles change.
2. The speed and the distance between particles change.

9. What happens to matter when a change of state occurs?
I will be able to explain what a change in state is and describe how matter changes state.
What happens to matter when a change of state occurs?
Energy / Motion of Solid Particles.
Vibrate in place
2. very slow movement
3. Least energetic molecules
4. particles close together

10. What happens to matter when a change of state occurs?
I will be able to explain what a change in state is and describe how matter changes state.
What happens to matter when a change of state occurs?
Energy / Motion of Liquid Particles.
Begin to move around
Faster movement than solid
Particles further apart

11. What happens to matter when a change of state occurs?
I will be able to explain what a change in state is and describe how matter changes state.
What happens to matter when a change of state occurs?
Energy / Motion of Gas Particles.
Move very quickly
2. Particles very far apart
3. Most energetic molecules

12. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Melting
1.Solid becomes liquid.
2.Energy is added
Particles speed up.
Temperature rises
Melting point
Temperature at which a substance changes from a solid to a liquid.

13. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Evaporation
Add heat to a liquid
1. Atoms speed up.
2. Gain more energy
3. Become a gas
Evaporation - Particles can escape from the surface of a liquid enough heat is added.

14. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Condensation
The change in state from a gas to a liquid.
1.Cooling a gas
2.Taking heat away
3.Particles lose energy
Condensation - Particles can go from a gas to a liquid if enough heat is taken away

15. What is a change in State?
I will be able to explain what a change in state is and describe how matter changes state.
What is a change in State?
Freezing
1. Liquid becomes solid.
2. Loss of energy.
a. Particles slow down
b. Heat taken away
c. Temperature cools
Freezing point - Temperature at which a substance changes from a liquid to a solid.