Amaze your family and friends by having a portable tornado! And you recycle two old bottles!!!
Just follow these instructions.
Step 1: You will need
//2 Litre bottles x2
//Gaffer tape/duct tape
//Washing up liquid
Step 2: Where to start
Fill one of the 2 litre bottles just over half full of water and pour one drop of washing up liquid into the water.
Now pick up the empty 2-litre bottle and join the necks of the two bottles together.
You need to make the join between the two bottles very strong, so wrap A LOT of gaffer tape / duct tape around the neck.
Step 3: To create the 'tornado'
Hey Presto! Your very own tornado!
Step 4: The science of it!
When the water is spinning down the neck of the two bottles, the air in the bottle rushes up to meet the water.
This creates a vortex.
Real tornados are created when a column of warm air rises and air rushes in at ground level and it begins to spin. If the storm gathers energy, a twisting, spinning funnel then develops.
Tornados are the fastest winds on earth reaching up to 300 miles per hour!