
1. Tectonic plates - s'mores
2. Gyroscopic precession - hanging bike tire
3. Pendulum chaining - chaos (attached pencil)
4. Boat building with different materials - volume, density, and buoyancy
5. Double slit - wave vs particle light
6. Predicting where toy cars will end up after crashing - momentum
7. Bridge building - Popsicle sticks, glue, and index cards
8. Catapult building - projectile path prediction
9. Bouncing balls of different sizes/densities - gravity
10. Wooden race cars - drag and friction
11. Mentos and Coke
12. Light reflection - additive and subtractive colors
13. DIY lava lamp
14. Graphite circuit
15. Plant growth documentation - start early!
16. Mold growth - creep them out
17. DIY battery
18. Bloon hovercraft
19. Rusting of different metal nails
20. PLASMA in microwave with cut grape - saved the best for last