unit 3 - states of matter

What are the main states of matter?

Solid, Liquid, Gas

How are particles arranged in a solid?

Particles are mostly packed together.

What do particles in a solid do?

Particles vibrate in place.

What is a lattice?

A regular repeating three-dimensional arrangement.

Why are solids hard to compress?

Because of the very small spaces between particles.

Do solids have a fixed shape?

Yes, solids have a fixed shape.

What does definite mass mean in solids?

A substance has a specific amount of matter.

Does the volume of a solid change?

No, the volume does not change.

What holds particles together in solids?

Strong forces hold particles together.

How do particles behave in a liquid?

Particles take the shape of the container.

How are particles arranged in a liquid?

Particles are close together with spaces between.

Do liquids have a definite mass?

Yes, liquids have a definite mass.

Does the volume of a liquid change?

No, the volume does not change.

Why are liquids hard to compress?

Because of the spaces between particles.

How do particles move in a liquid?

Particles can move over or past each other (they can flow).

How are particles arranged in a gas?

Particles are arranged randomly and far apart.

How do gas particles behave?

Particles move freely in all directions.

Can the volume of a gas change?

Yes, the volume of a gas can change.

Does gas have a definite mass?

Yes, gas has a definite mass.

What is mass?

Mass is the amount of matter in an object.

What is the arrangement of particles in solids?

Particles are closely packed in a fixed arrangement.

What is the arrangement of particles in gases?

Particles are far apart and randomly arranged.