States of matter

What you'll learn

1. 1

   Imagine holding an ice cube in your hand. It's solid — hard and keeps its shape.

2. 2

   What state of matter is an ice cube?

3. 3

   Here are three jars: one with ice (solid), one with water (liquid), one with steam (gas).

4. 4

   Drag each label to the right jar: solid, liquid, gas.

5. 5

   A puddle disappears on a sunny day. Why?

6. 6

   What happens to water when it freezes?

7. 7

   Which state of matter has no fixed shape and fills the whole container?