Does Heat Affect Matter?

The boiling point is the temperature at which a substance changes from a liquid to a gas.

How does the movement of the particles change as it nears the boiling point?

The boiling point is the temperature at which a substance changes from a liquid to a gas.

How does the movement of the particles change as it nears the boiling point? The particle move faster and faster until they escape from the liquid.

The freezing point is the temperature at which a substance changes from a liquid to a solid.

How does this happen?

The freezing point is the temperature at which a substance changes from a liquid to a solid.

How does this happen? The particles move slower

until they are close together.

What is energy?What is kinetic energy?What is thermal energy?What is temperature?

What is energy? Energy is the ability to cause a change.

Energy is the ability to do work. Our bodies use food to make energy so we can play and read and clean our rooms. The other types of energy we use help make our lives easier and more comfortable.

What is kinetic energy? Kinetic energy is the energy of motion.

Objects gain kinetic energy as they move.

What is thermal energy? Thermal energy is the motion of Thermal energy is the motion of particles in matter. Thermal particles in matter. Thermal means “heat” . means “heat” . We feel the thermal energy of particles in matter as heat. When you add thermal energy to matter the particles move faster.

What is thermal energy? Thermal energy is the motion of Thermal energy is the motion of particles in matter. Thermal particles in matter. Thermal means “heat” . means “heat” . We feel the thermal energy of particles in matter as heat. When you add thermal energy to matter the particles move faster.

What is temperature? Temperature is the measure of the Temperature is the measure of the average energy of motion of average energy of motion of particles in matterparticles in matter. When the particles in the air move more slowly, they have less thermal energy.

How do we measure temperature? A thermometer is used to measure A thermometer is used to measure temperature.temperature.

1. What does temperature measure?

2. What happens if you add thermal energy to matter?

3. If the particle in matter move faster, what has happened to the temperature?

4. When thermal energy is removed from water, what happens to the temperature?

Heat is the result of molecules vibrating molecules vibrating quicklyquickly..

Heat is moving energyHeat is moving energy..

Heat (Thermal energy) always moves Heat (Thermal energy) always moves from warmer to cooler objectsfrom warmer to cooler objects..

Measurement of kinetic energy of molecules or the amount of thermal energy.

Thermometer Fahrenheit Celsius

The transfer of The transfer of heat by direct heat by direct contact between contact between objects or objects or particles.particles.

Heat transferred by the Heat transferred by the movement of molecules movement of molecules within a material. within a material. (air, water, metal)

Movement occurs from warmer areas to cooler areas.

The movement of a substance that is caused by differences in temperature and density.

Examples: wind & boiling water (earth wants things to balance out)

Heat Heat transferred transferred through space.through space.

Example: The sun’s rays causing a sunburn.

Conductors are Conductors are materials that materials that transfer heat transfer heat easilyeasily.

Examples: metals like copper and gold

Conductors are Conductors are materials that materials that transfer heat transfer heat easilyeasily.

Examples: metals like copper and gold

An insulator is a An insulator is a material that material that does not transfer does not transfer heat easily. heat easily.

Examples: ◦ liquids and gases◦ a jacket