Create a 1 week physics challenge for 11th grade high school...

Prompt

Create a 1 week physics challenge for 11th grade high schoolers first week of school. It should be a bridge building group competition and they have 4 1 hour class periods for the explanation, building, and competition. We have minimal resources at the school, so make it budget friendly. Give me all the information I need to teach and what supplies are needed for the activity and any worksheets that would be helpful.