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
All matter is made of atoms.
Atoms in constant motion.
Particle movement determines the state of matter.
States of Matter.
Solid
Liquid
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
Shape:
Definite
Volume:
Atoms:
Very close together.
Vibrate in place.
Exception:
Water, ice has more space between atoms than liquid water.

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
Shape:
Not definite
Volume:
Definite
Atoms:
Further apart
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
Shape:
Not definite
Volume:
Not Definite
Atoms:
Moving very fast.
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:
Water vapor to liquid water.
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
To change state, energy must be added or removed.
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.
Energy of the particles change.
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 Particles.
Solids
Vibrate in place, 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 Particles.
Liquids
Move around
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 Particles.
Gas-
Move quickly
Particles very far apart.

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
Solid becomes liquid.
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?
Vaporization
Process by which liquids or solids change to a gas.

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?
Sublimation
Change in state from a solid directly into a gas. (skips liquid phase)
Add heat
Atoms gain energy
Escape into the air as a gas.
Example: Dry Ice

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?
Evaporation
Add heat to a liquid
Atoms gain energy.
Move faster
Particles can escape from the surface of a liquid if enough heat is added.

16. 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?
Not in notes, write in the space in the far left box at the bottom.
Boiling
A rapid change from a liquid to a gas (vapor)
Boiling Point
The temperature at which this occurs in a liquid.
100°C
212°F

17. 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.
Cooling a gas
Particles lose energy.

18. 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?
Deposition
Change in state from a gas directly to a solid.
Substance cools.
Atoms lose energy
No liquid forms in the process.
Example:
Water vapor turns into ice crystals.

19. 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
Liquid becomes solid.
Loss of energy.
Particles slow down
Temperature cools
Freezing point
Temperature at which a substance changes into a solid.
Water = 0C or 32F

20. 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?
Mass is Conserved
The amount of matter stays the same during a phase change.
The mass does not change when its state changes.
Each state constrains the same amount of matter.

21. 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?
Mass is Conserved