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  • Beam bridge
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並前往https://www.instructables.com/A-Beam-Bridge-Science-Project/

A Beam Bridge Science Project - Instructables

1. Supplies: A bag/box of straws Tape Scissors Small cups (or wedding favor mini buckets from the Dollar Tree stores) Paper clips Weights – pennies, paper clips, etc. Anything is OK as long as they weigh the same. You want to compare how much… 2. 1. Take 6 straws and cut off all the bendy parts, if you have bendy straws. 2. On one end, pull a straw 1 1/2 inch up between two straws and tape them ... 3. 1. Tape the wide ends of the support structure, with a single straw pointing down to the bottom, to tables, chairs, desks, etc. that are 12 inches apart. 2 ...

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