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In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it.

In this environmental health activity, learners investigate their breathing and pulse rates, and learn how these measurements are affected by physical activity.

This activity (on pages 38-43) has learners simulate the way scientists track and map the movement of otters in the wild using radio trackers.

In this activity (on pages 18-28), learners explore how the shape of seeds affects how they are dispersed by wind, birds, ocean currents and other means.

In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

In this environmental health activity, learners investigate their own vital lung capacities.

In this activity, learners make self-assembled polymer spheres.

In this game (on pages 14-21), learners explore how each human being inherits genetic traits such as eye color.

This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself.

In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

In this design challenge activity, learners build a four-stringed instrument that can play a tune.

In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

In this activity on page 8 of the PDF (Behind the Scenes with Chemistry), learners make three of Harry Potter's essential school supplies: quills, ink, and color-changing paper.

In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.

During this hands-on activity, learners are briefly exposed to moviemaking and animation, when they create their own thaumatropes.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.

Learners design their own experiment to investigate how pollution diffuses through ground material.