5 Engineering Challenges with Clothespins, Binder Clips, and Craft Sticks - Fantastic STEM challenges for kids of all ages!
DIY oganizing with paper rolls, baby formula bottles, etc
Create a bowling game from recycled actimel bottles and styropor balls
Lamp made from plastic cap - Bottled Water Caps Lamp
Learn how to make both a basic homopolar motor and a tiny dancing motor! Great science fair project for older kids! DO NOT SWALLOW!