Whirling Water
Primary | Energy | Views: 903
You will Need:
- A large, plastic drinks bottle
- String
- Pins
- Pencil
- Straw
- Water
Health and Safety: Ask for adult help with creating holes in the plastic, as pins are sharp.
What to Do:
- Cut the top off of the drinks bottle, leaving about two-thirds of the bottle.
- Carefully, with a pin, create six holes around the base of the bottle. Push a pencil though each pin hole to make it wider.
- Cut a straw into six pieces, with each piece around 2cm long.
- Push each piece of straw into one of the holes at the base of the bottle.
- To hang your bottle, make three holes around the top part of the bottle, and put the string through each hole.
- Tie the three strings to a four piece of string, that you will hold to make your experiment work.
- Pour water into the bottle while holding it up, in a place that is okay to get wet! Watch the spinning effect and learn about hydropower!
How does it work?
The bottle spins around because energy is comes from the water pushing through the holes. This is a small example of how hydroelectricity works – falling water holds
energy which then move turbines to produce electricity.
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