Tornado in a Bottle Experiment
This simple science activity models how a spinning vortex forms using water and air pressure.
Ingredients
- 2 2- Liter plastic pop bottles clean and dry
- Water
- Pitcher
- Glitter
- Funnel
- Food coloring optional
- Metal washer about 1 inch outer diameter with a 3/8 to 1/2 inch inner hole, so it fits over the bottle opening
- Duct tape
- Tape
Instructions
- Fill one bottle halfway with water.
- Add food coloring and swirl to mix.
- Place the metal washer on top.
- Attach the second bottle upside down.
- Secure tightly with tape.
- Flip and swirl to create the vortex.