Heat in the Environment - Lesson One

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Kinetic Molecular Theory

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A theory that explains the behavior of particles in matter, stating that all matter is made up of tiny particles that are in constant motion.

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Particles

Back

Small units of matter that make up substances.

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Kinetic Energy

Back

The energy that particles have due to their motion.

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Heat Energy

Back

The total energy of all particles in a substance, measured in joules.

Front

Temperature

Back

A measure of the average kinetic energy of particles in a substance, measured in degrees Celsius.

Front

Joules

Back

The unit of measurement for heat energy.

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Degrees Celsius

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The unit of measurement for temperature.

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Melting

Back

The change of state from solid to liquid when heat is added.

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Freezing

Back

The change of state from liquid to solid when heat is removed.

Front

Boiling

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The rapid change of state from liquid to gas when heat is added.