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This is an activity about lung capacity. Learners will measure their own lung capacity using a homemade spirometer.

In this creative activity, learners will find out what makes an insect an insect by studying examples of insect adaptations and by examining why there are so many different types of insects.

In this activity, learners make their own edible DNA double helix out of candy and find out about the shape of DNA.

In this engineering design challenge, learners build an octopus-inspired suction pad that can grab an object and hold it tightly in the air.

In this activity, learners use information gathered from a variety of sources to design and make their own insect.

In this activity, learners imitate the way vocal cords work by building a model from a plastic cup, rubber band, and a straw.

Build and test a scale model of a rainforest canopy walkway.

Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

In this creative activity, learners will find out what makes an insect an insect by studying examples of insect adaptations and by examining why there are so many different types of insects.

In this activity, learners will create their own coral polyps - the basis for a coral reef.

In this engineering design challenge, learners make a bird and then control its flight with attached strings.

In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

In this activity, learners will explore how light can refract or break apart into different colors.

Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.

Learners will explore the chemistry of mucous and its importance to our health by following a process to make their own replica "snot." The activity includes a time and age recommendation, a materials

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

In this activity, learners make balloon models of disease-causing bacteria.