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In this activity, learners design a bicycle helmet. Participants will explore the design of bicycle helmets to gain an appreciation for the role that helmet layers play protecting the head.

In this activity on page 5 of the PDF, learners compare water with artificial urine to see how urinalysis works. Learners use urinalysis test strips to test for glucose and protein in the fake urine.

In this earth science activity (page 14 of the PDF), learners use layers of closed-cell foam to create their own model of the mid-ocean ridge in order to simulate seafloor spreading.

Put on a pair of gloves and be the conductor of your invisible orchestra!

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

In this outdoor activity, learners design devices that will catch prey or gather plants.

In this activity, learners try to float ink on the surface of water to create a pattern and then capture it with absorbent paper.

In this two-part activity about the connection between the lupine plant and butterflies, learners first read "Miss Rumphius," a storybook about lupine by Barbara Cooney.

In this activity, teams of learners study magnetic fields at four separate stations: examining magnetic fields generated by everyday items, mapping out a magnetic field using a compass, creating model

When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.

Light painting is a creative activity that involves creating striking images and illusions using a camera, a light source, and a little practice.

This activity guide includes instructions for building a spectroscope using a standard classroom overhead projector.

In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.

This activity models the mass coral spawning event that takes place at Flower Garden Banks National Marine Sanctuary every August.

In this outdoor activity, learners turn the fun of feeding wild birds into an investigation of bird behavior.

In this activity, learners use household materials to investigate and explore their ability to smell an odor.