Physical Science - Unit F (Grade K)
Matter can be described by its observable physical properties, the materials it is made of, and its uses. There are three different states of matter: solid, liquid, and gas. Matter can be changed by folding, bending, tearing, or mixing it. Light can pass through some forms of matter, but not others.
From any place on Earth, a compass will always point north. But do you know why? Explore the inner workings of this tiny magnet by building one—and then testing it in your neighborhood.