Third graders correct sentences that mistake freezing for a gas-to-solid change and call a table a liquid because it is heavy. Fill-in-the-blank questions describe chocolate melting when heated, the gases that make up air, an ice pop on a hot day, and how particles in a gas move faster than particles in a solid.

True-or-false items confirm that water can exist as solid, liquid, or gas, that a liquid does not keep its own shape, and that adding heat can change a state. The mix builds confidence connecting properties to everyday matter.