At home for 5-11 11-14
What you need
- An empty wine bottle
- Piece of paper
- Scrunch up a piece of paper small enough to fit into the neck of the bottle
- Hold the bottle horizontally and place the piece of paper just inside the neck of the bottle
- Try to blow the piece of paper into the bottle. The paper will fly out instead
Results and Explanation
The bottle is already full of air, so it's very hard to blow more air into it. When you do blow into the bottle the air comes back out, pushing the piece of paper out.
These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.