To make a tornado in a bottle, fill two 2L bottles with 1.5L of water, add glitter and a toy person, tape the bottles together upside down, and vigorously shake the bottles in a circular motion to observe a miniature tornado form inside with debris. A real tornado is a destructive wind that occurs when hot and cold air combine in a thunderstorm, can reach speeds of hundreds of kilometers per hour, destroy buildings and vehicles, and should be avoided.

1. How To Make A Tornado In A Bottle
Materials:
Two 2L bottles
1.5L of water
glitter
small toy person
duct tape
partner
Method:
1.Take off the label of the bottles.
2.Pour 1.5L of water into the bottle.
3.Put in some glitter to show the debris.
4.Put the person inside the bottle.
5.With your partner put the second bottles on top of the other bottle`s top.
6.Connect the two bottles with duct tape.
7.Make sure the water can`t flow through.
8.Turn the full bottles upside down.
9.Shake the bottle in circle, very vigorously.
10.Observe the tornado.
The Science Behind It:
A tornado is a destructive wind that destroys every thing in its path.
It normally starts in a thunderstorm when hot air combines with cold air.
Winds can reach up to hundreds of kilometers and can be up to 2~10 km
wide. A fujita scale will measure if it is a F0, F1,F2,F3,F4,F5 or an F6. It can
destroy buildings and thro vehicles around like toys. You would not want to
be in its path.