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Walk On Water Bugs
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In this activity (on pages 29-35), learners examine water pollution and filtration.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.

Pop Rockets
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In this activity, learners make film canister rocket ships. A fin pattern is glued onto the outside of the canister, and fuel (water and half an antacid tablet) is mixed inside the canister.

Chromosome Models: Karyotyping
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This activity was designed for blind learners, but all types of learners can have a tactile opportunity to construct a karyotype, an organized model of an organism’s chromosomes, conveying the chromos

The Water Cycle
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Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.

Mars from Above: Carving Channels
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In this activity, learners create channel features with flowing water, comparing their observations to real images of Mars and Earth taken by satellites/orbiters.

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

Moonlight Serenade
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In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.

Toilet Paper Solar System
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In this activity, learners build a scale model of the solar system using a roll of toilet paper.

Tracking Otters
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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.

Model Wind Tunnel
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In this activity, learners build a miniature wind tunnel to measure force. Learners construct the model out of Lexan plastic, a fan, and a precise digital scale.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.

Modeling the Seasons
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This activity provides instructions for learners to create models of the Earth and then to model a "day" on Earth as well as modeling the seasons.

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

Does the Moon Rotate?
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This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

Make a Heart Valve
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In this activity, learners make a model of a one-way heart valve to investigate how a heart controls the direction of blood flow.

Foam Rocket
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In this activity, learners work in teams build and launch rubberband-powered foam rockets.

What's in Your Blood?
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Doctors often send a sample of blood to a lab, to make sure their patients are healthy.

Balsa Towers
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Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio.

Fog Chamber
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In this weather-related activity, learners make a portable cloud in a bottle.