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.