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In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

In this activity about dinosaurs, learners first participate in a group discussion about where and when dinosaurs lived, how big they were, and who studies them and how.

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.

This quiz lets you estimate your annual radiation exposure.

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

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

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

In this activity, learners sort and count different colored plastic dinosaurs by various attributes including tail length, whether or not the dinosaurs have horns, etc.