Physics
Lemon Battery
Light up a small LED using nothing but lemons, copper coins, and zinc-coated nails.
⏱ 30-60 min📊 Easy
View Experiment →Small experiments. Big questions.
Every experiment uses things you probably already have at home. Pick one, gather your materials, and start asking questions.
Environment
DIY Bottle Water Filter
Build a layered sand-charcoal-gravel filter inside a plastic bottle and watch muddy water turn clear.
⏱ 30-60 min📊 Easy
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Chemistry
Baking Soda Volcano
Trigger a foamy chemical eruption with baking soda, vinegar, and a pinch of dish soap.
⏱ Under 30 min📊 Easy
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