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In this activity, learners create three-dimensional shapes by making some origami models of simple boxes and containers.

In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

In this activity, learners make a model of the solid Earth's layers that's good enough to eat! Learners use tasty foodstuffs to simulate Earth's inner core, outer core, mantle, and crust.

In this activity, learners make a 3-D model of DNA using paper and toothpicks. While constructing this model, learners will explore the composition and structure of DNA.

Using simple, inexpensive items, learners build and test submarine models.

Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.

Educator Amy O'Donnell from the American Museum of Natural History guides learners to create a diorama of a coral reef.