What is the basic idea of the Particle Model of Matter?

What happens to the speed of particles when heat is added?

What happens to the spaces between particles as temperature increases?

What do we call the theory that describes how particles behave?

Which of the following is a pure substance?

In Kinetic Molecular Theory, what causes particles to move faster?

Which of the following statements is TRUE about particles in a solid?

What happens to particle movement when a liquid is cooled?

Which state of matter has particles that are farthest apart?

What do we call the smallest unit of an element?

Heat causes particles to move faster.

The spaces between gas particles are larger than in solids.

Molecules in a solid are free to move all around the container.

A compound is made up of two or more elements.

Elements and compounds are both pure substances.

Cooling increases the energy of particles.

The Kinetic Molecular Theory explains particle motion.

Solids have no definite shape or volume.

Liquids can change shape but have a definite volume.

Gases always take the shape and volume of their container.

The smallest unit of matter that retains the identity of an element.

A substance made up of only one kind of atom.

A substance made by combining two or more elements chemically.

The theory that explains how particles move.

The state of matter where particles are packed tightly and vibrate.

The state of matter with definite volume but no fixed shape.

The state of matter with particles that move freely and are far apart.

The force that pulls particles toward each other.

The process where particles move faster due to added heat.

The tiny particles that make up matter.

Explain how the behavior of particles helps us understand changes in the state of matter.