Ages 1–5 · Free ideas
Weekend Experiments
Parent-tested activities for a toddler and a preschooler. Winners only.
Browse experimentsTry this one
Density Layers
Pour honey, water, oil, and balsamic into clear glasses and watch them stack or dance. Then try an egg in plain water vs salty water — it sinks, then floats. The balsamic-on-oil bubbles that sink and climb back up are the crowd favorite.
Open guide →More to try
View all →Sink or Float
Some objects sink and some float — mass and shape both matter, and guessing is part of the fun.
Ages 1-2, 3-5 · physics
Shadow Puppets
Light travels in straight lines; blocking it makes shadows you can shape and move.
Ages 3-5 · light, art
Ice Paint
Ice melts into color — temperature and time change the art as you go.
Ages 1-2, 3-5 · art, chemistry
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