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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, learners work with an adult to build a rocket and launcher out of a plastic 2-liter bottle, flexible plastic hose, plastic tubing, toilet paper tube, and duct tape.

Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.

In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

In this activity described on pages 2-3 of the PDF, participants debate whether there there's life elsewhere in the universe.

Learners listen to and try to decipher a radio message that was sent from Earth to possible intelligent civilizations.

In this tabletop board game, players will represent a team of scientists and engineers sending a spacecraft on a mission to space.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer.

In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

In this activity, learners make their own solar oven to bake s'mores and learn about how solar energy is absorbed on Earth.

In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

In this activity, learners build a paper model of the spacecraft and photometer (telescope) used during NASA's Kepler Mission.

Learners imagine they are paleontologists in Florida, where they find (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

In this activity, learners examine photo images of Earth taken from space, and attempt to identify and explain some of our planet's geological features.

In this activity, learners build their your own seismograph with household materials to document shaking.

In this activity, learners explore the Great Plains.

In this activity (on pages 11-12 of PDF) learners create models of lava layers that have formed on the moon.

In this activity about archaeology, learners will explore different Egyptian hieroglyphs and recognize their meanings and uses.