Bones may feel hard, but can they bend? This experiment shows what happens when you take the minerals out of a bone—revealing the flexible part that’s left behind.

Want to see your heart in action? A simple device constructed out of a toothpick and clay makes learning about the pulse visual and hands-on

Create a simple pulley system and see how adding more pulleys makes lifting and pulling easier.

Launch rubber bands at different stretch lengths and see how far they fly. The farther you stretch the rubber band, the farther it flies!