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List of Materials : 1 Protractor 1 Straw 2 pieces of tape 1 binder clip
First you put the 15 inch string trough the hole of the protractor . then you tape the back of the protractor where the srting is tied at so that it i...
Then you clip on a binder clip to the tip of the string to hold it down as a weight
Lastly you tape a regular straw to the base of the protractor
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