This balance is made out of a coat hanger and easy to use. - Mike
You will need:
wire clothes hanger
2 paper cups
1. Tie string to cups, tie cups to hanger.
2. Hang wire hanger.
3. Attach index card pointer to hanger
4. Tape paper to wall behind wire hanger.
5. Mark where pointer rests (balance mark).
How can you make other inexpensive science inquiry tools?
See the Tools for Investigation cluster for more ideas.
How many jellybeans are equal in weight to an apple or a brick? Which is heavier - a pound of feathers or a pound of rocks? How can you find the exact weight of something with this balance?
Soft drink surprise
Balance a drop of water
Index of ideas
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