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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 activity, learners will model the mechanical weathering and erosion of rocks in a stream or river.

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.

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.