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Prospers Invention Table

Engineering Design Process Step
A description of what I did in this Step
Identify and define the problem
The problem that I identified is to make a bridge out of drinking straws and masking tape that can hold as many pennies as possible.
Brainstorm/Design
We decided to make a truss bridge. It is about 2 feet long and about 8 inches tall.
Build/Gather Materials
list of materials- 20 drinking straws, masking tape.
Test and Evaluate
So far, our bride has held 81 pennies, but we ran out of pennies. Tomorrow we will have more to test on our bridgte.
Market and Sell