Particles of Matter

Front

To press together, to force into less space.

Back

Compression

Front

The movement of particles from an area of higher concentration (more particles) to an area of lower concentration. The particles spread out.

Back

Diffusion

Front

When temperature increases (gets "hotter"), the volume of matter increases (gets bigger).

Back

Thermal Expansion

Front

When a solute (like salt) mixes with a solvent (like water) to make a solution (like salt water).

Back

Dissolving

Front

The amount of mass in a given volume. How close the particles in a substance are.

Back

Density

Front

Which is not an example of a pure substance? Options: Atom, Solution, Molecules, Compound

Back

Solution

Front

Jack pulls out a piece of iron. What is this object and why is it a mixture or a pure substance?

Back

A pure substance because it is only composed of one thing.

Front

All _____ is made of tiny _____, called atoms and molecules.

Back

matter, particles

Front

The _____, of matter are always _____.

Back

particles, moving

Front

There are always _____ between the particles that make up matter.

Back

spaces