26

Lesson 26 of 84 · Matter

Experiment

Shiny, Dull, Rough, and Smooth

What You'll Learn

Air is matter even though you cannot see it. It takes up space—blow up a balloon to prove it!

Key Words

  • ice
  • change
  • property

Materials Needed

  • food coloring
  • plastic bottles
  • balloons
  • measuring cups
  • paper towels
  • thermometer

Safety First

  • Wash hands after handling materials.
  • Be careful with scissors — ask an adult for help if needed.

Steps

Step 1Read

Read and learn: Air is matter even though you cannot see it. It takes up space—blow up a balloon to prove it!

Step 2Do

Follow the steps one at a time.

Step 3Observe

Watch carefully. What happens?

Step 4Record

Draw and write about what you learned.

Check Your Understanding

Question 1

1 of 3

Can you separate sand from water?