Poinsettia Spinner
Use a straw, scissors, and paper to engineer a small poinsettia-shaped propeller. Then, design a device that will allow you to power your poinsettia spinner using only air from your …
Use a straw, scissors, and paper to engineer a small poinsettia-shaped propeller. Then, design a device that will allow you to power your poinsettia spinner using only air from your …
Prepare for lift off! Engineer a hang glider and watch it soar in the air as you complete your own set of aerodynamic challenges! Add materials to your Amazon shopping …