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This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

This is an activity about dinosaurs, fossils, and the work of paleontologists. Learners use hand tools (paint brushes, scoops, and sifters) to unearth fossil specimens in tubs of birdseed.

In this chemistry demonstration, acid rain is simulated in a petri dish.

Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

In this activity, early learners simulate fossil prints in play dough or clay.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.