15 At-Home Science Experiments. Your weekends are guaranteed to be both educational and tons of fun with these awesome at-home science experiments! Enjoy ooey gooey slime, sweet rock candy, turning carnations the colours of the rainbow, and many more cool
lava lamp science experiment... liquids are different densities but not by much. When the light globe warms the lamp up, the slightly heavier liquid (the coloured one) becomes less dense and floats to the top. There it cools down and falls back down to the bottom...coloured water sticks to the air bubbles, then sinks when the bubbles break on the surface.