Front

What is the Kinetic Molecular Theory?

Back

The Kinetic Molecular Theory explains that matter is made up of tiny particles that are in constant motion. The energy of these particles determines the state of matter: solids, liquids, or gases.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

How do particles behave in a solid?

Back

In a solid, particles are closely packed together and vibrate in place, resulting in a definite shape and volume.

Front

How do particles behave in a liquid?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to take the shape of their container while maintaining a definite volume.

Front

How do particles behave in a gas?

Back

In a gas, particles are far apart and move freely, filling the entire volume of their container and having no definite shape or volume.

Front

What happens to the kinetic energy of particles as temperature increases?

Back

As temperature increases, the kinetic energy of particles increases, causing them to move faster.

Front

What is the relationship between temperature and the state of matter?

Back

Temperature affects the state of matter; increasing temperature can change a solid to a liquid (melting) or a liquid to a gas (evaporation).

Front

What is the kinetic energy of particles in a solid compared to a gas?

Back

Particles in a solid have lower kinetic energy than particles in a gas.

Front

What happens to the spacing of particles when they gain kinetic energy?

Back

When particles gain kinetic energy, they move further apart.

Front

Can states of matter change?

Back

Yes, states of matter can change with variations in temperature and pressure.