Tornadoes are destructive storms are caused by a vortex. You can use the classic “tornado in a bottle” demonstration to explain how a vortex forms.
This demonstration goes well with a weather related activity or just for some STEM fun.
Tornado in a Bottle
When you get the water spinning just right, the forces will cause a vortex to form. A tornado is another type of vortex.
- 1 2 liter soda bottle empty, with cap, clear works best
- 3 tbsp glitter
- Fill the bottle about 3/4 with water.
- Add the glitter.
- Put the cap on the bottle.
- Turn the bottle upside down.
- Move it in a circular motion for about 15 seconds. You should see a vortex form in the water. If not, try again, either a little faster or a little slower.
It might take a few tries to get the speed correct. You’ll know when you have it.
We are sorry that this post was not useful for you!
Let us improve this post!
Tell us how we can improve this post?