Ready
for some tornado action!? This is science at its exciting best, allowing a great
visual demonstration of a tornado in a bottle. The valve joins two soft drink
bottles together (not included) allowing you to create a swirling, twisting
tornado. Use it to study properties of air as well as the atmospheric conditions
needed to create a tornado vortex. This brightly coloured valve is great for any
unit on weather or natural disasters.
Ages: 4
+
What
you get
Plastic
tornado connector. Colours vary. Plastic bottles not included.
How
does it work?
Almost
fill a one litre plastic bottle with water. Screw the tornado connector onto the
almost filled bottle then attach the empty bottle to the other side (so it looks
like an hour glass). Turn the bottles upside down, swish the water around and,
presto, a cool tornado appears. This demonstration shows that air takes up space
(or volume) and exerts a pressure. It also shows that when water flows down, air
must move up. Add some food colouring to the water to get a different visual
effect. Lots of fun!
Teach
- Kinetic
and potential energy.
- Properties
of air: it takes up space and exerts pressure.
- Science
of vortex energy (twisting, swirling force).
- Tornadoes.
FAQ
Any
sized bottles will work, but one litre bottles are the
best.
