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Kelly Hudson (khudson@steds.org)

Student Instructions

Be an Engineer: K'NEX Bridge Challenge

According to Britannica, a "bridge is a structure that allows people and vehicles to cross over an open space. Bridges span, or stretch across, deep pits in the earth, bodies of water, and roads. The primary function of a bridge is to carry traffic loads: heavy trucks, cars, and trains." 1. Watch "What Makes Bridges So Strong" by SciShow Kids. 2. Work with your group to design a strong K'NEX bridge. Your bridge must be able to hold rocks. 3. Build your bridge. As you build, you are allowed to test the strength of your bridge with ONE rock. You will have 40 minutes to design and build your bridge. 4. Once your bridge is built, take a picture photo. 5. As your bridge is tested, take a picture photo of one rock (load) on your bridge. 6. Once your bridge breaks, take a picture photo. 6. Count the number of rocks that your bridge held. 7. Use Shadow Puppet to create a video about your bridge using your 3 pictures. Explain your bridge. 8. Add add your video to Seesaw.

3rd Grade, 5th Grade, 4th Grade, Science
564 teachers like this
Compatible with: Chromebooks, computers, iPads, iPhones, Android tablets, Android phones, Kindle Fire

Teacher Notes (not visible to students)

What Makes Bridges So Strong: https://www.youtube.com/watch?v=oVOnRPefcno