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In this activity (on pages 25-32 of PDF), learners make models of the inner ear out of pipe cleaners.

In this activity (on page 2 of the PDF), learners use art supplies to build models of insects, both real or imagined.

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 (on the left side of page 5, continued on the right side of page 4 of the PDF), learners make models of colorful butterflies.

Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

In this activity, learners discover that there is space between molecules even in a cup "full" of water. They first fill a cup with marbles, and then add sand to fill the gaps between the marbles.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

Learners build models to learn about the special cells and structures that plants use to move water from their roots up through the stems and leaves.

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

Learners match puzzle pieces to outlines of a DNA strand. The puzzle pieces represent the four chemicals making up DNA base pairs: adenine, thymine, guanine, and cytosine.

In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit

In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.

In this activity (on pages 25-31 of PDF), learners soak sponges with different amounts of plaster of paris to simulate different levels of calcification in bone formation.

Learners gain an intuitive knowledge of the physical aspects of watersheds by creating their own watershed models.

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.