Mr. Smith is teaching his class about matter. He tells his students that matter is everywhere around them. Matter is anything that takes up space and has a mass.

Ben, Sadie, and Luke asked Mr. Smith if they can have a contest to see who can find the most matter. Mr. Smith agrees that they can have a contest but wanted them to sort the things they find by the states of matter.

Mr. Smith takes a moment to explain to Ben, Sadie, and Luke the different states of matter.

Solids are objects that keep their own shape and do not flow like a liquid. Solids hold their shape because of their tightly packed molecules. Solids have definite shape, mass, and volume.

Some examples of solids are apples, cars, and rocks.

Liquid particles are more loosely packed than that of a solid's. Liquids have a definite volume but not a definite shape. Liquids form to the shape of its container.

Some examples of liquids are water, milk, and honey.

Gases do not have a definite volume of shape and cannot be seen.