- Clear plastic bag
- Pupils' hands to hold the bag
- Step 1: Hold the bag open
- Step 2:Pull the bag up and down
- Step 3: Close the top of bag with your hands.
- The bag will puff up.
- The bag will not pop.
- The bag will float around.
The bag filled with air. We couldn't see the air, but we could feel it in the bag, and we could see the bag puff up. The bag did not pop.
Air does take up space.