4M | Green Science - Tin Can Calculator
Grasshopper
$29.00
Running out of batteries for your calculator? No worries! Recycle tin cans and pencils to generate enough electricity to power a calculator.
Contains:
- 1 can holder
- 2 pencils
- 1 white wire
- 1 calculator holder
- 1 calculator with wires
- 2 pencil connectors
- 2 pencil holders
- 1 sand paper sheet
- 6 screws
- 1 adhesive foam
- Detailed instructions
Requires 2 used and cleaned aluminium soda cans, pencil sharpener, water, salt, small cross-head screwdriver not included
- Ages: 8+
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