Super cool glow bottle that let you see light rays! What you'll need Regularly shaped transparent bottle with cap Plenty of water...

Is sugar water colourless? No! It can be colourful. What you'll need 100 cm^3 measuring cylinder 66 cm^3 water 50 g sugar 2 polarizing...

A fun bouncy hyperbolic paraboloid using sticks and elastics! What you'll need: 30 wooden/bamboo sticks (approx. 30-40 cm) ~60 small...