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States of MatterEarth Science Intro Unit
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. Solid2. Liquid3. Gas
I will be able to define and describe matter and the three states of matter.
What are the states of Matter?• Solids
1. Definite shape2. Definite Volume
Atoms: 1. Very close together.2. Vibrate in place.
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 shape2. Definite volume Atoms:
1. Further apart2. Move, have more kinetic
energy.
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 particle3. Most kinetic energy.
– Move faster when heat is applied.
– Move slower when heat is taken away
I will be able to define and describe matter and the three states of matter.
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.
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.
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.
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.
1. Vibrate in place
2. very slow movement
3. Least energetic molecules
4. particles close together
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.
1. Begin to move around2. Faster movement than
solid3. Particles further apart
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.1. Move very quickly
2. 2. Particles very far apart
3. 3. Most energetic molecules
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.
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 liquid1. Atoms speed up.2. Gain more energy3. Become a gas
Evaporation - Particles can escape from the surface of a liquid enough heat is added.
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 gas2.Taking heat away3.Particles lose energy
Condensation - Particles can go from a gas to a liquid if enough heat is taken away
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 downb. Heat taken awayc. Temperature cools
Freezing point - Temperature at which a substance changes from a liquid to a solid.
I will be able to explain what a change in state is and describe how matter changes state.