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.
tornado connector. Colours vary. Plastic bottles not included.
does it work?
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!
and potential energy.
of air: it takes up space and exerts pressure.
of vortex energy (twisting, swirling force).
sized bottles will work, but one litre bottles are the