States of Matter

Front

What state of matter has particles that are closely packed together and vibrate in place?

Back

solid

Front

What state of matter has particles that are far apart and move freely?

Back

gas

Front

What is the term for the energy that particles possess due to their motion?

Back

kinetic energy

Front

What is the state of matter that has a definite volume but no definite shape?

Back

liquid

Front

What happens to the particles in a substance when it is heated?

Back

They gain energy and move faster.

Front

What is the process called when a solid turns directly into a gas?

Back

sublimation

Front

What is the process called when a gas turns into a liquid?

Back

condensation

Front

What is the term for the change of state from liquid to solid?

Back

freezing

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not change the identity of the substance, while a chemical change does.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, often referred to as heat energy.