Grades K–2 · Flip each card to find out if the object is a solid, a liquid or a gas, and what happens when it melts or freezes.

Solid, Liquid or Gas?

Is a wooden block a solid, a liquid or a gas?

A liquid. It pours and takes the shape of the cup.

A gas. It spreads out to fill the balloon.

Is the air inside a balloon a solid, a liquid or a gas?

A solid. It keeps its shape until it melts.

Is an ice cube a solid, a liquid or a gas?

A liquid. It pours slowly, but it still flows.

A gas. Bubbles are gas inside the liquid.

What happens to an ice cube on a warm day?

Can melted chocolate turn back into a solid?