Sink and Float

Wood floats in water, but a rock sinks. Heavy things often sink.

Ice is frozen water. When ice gets warm, it melts and turns back into water!

Some things sink in water and some things float. Try putting different objects in a tub of water to see what happens!

Feathers are light and rocks are heavy. How do you know which is heavier?

A sponge soaks up water. Squeeze it and the water comes back out!

Sand is made of tiny pieces of rock. It feels rough and gritty.

Mud is a mixture of dirt and water. What happens when mud dries out?

When you blow up a balloon, you fill it with air. Air is a gas!

Jello starts as a liquid and turns into a wobbly solid in the fridge!

When water boils, you see steam rising up. The water is turning into a gas!