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Sea Turtle First Aid Investigation
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This activity (located on page 4 of the PDF under GPS: Sea Turtles Activity) is a full inquiry investigation into testing a repair material.

Can Nutrients in Water Cause Harm?
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

Racing with the Sun: Creating a Solar Car
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Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.

How to Make an Audio Tape Bow
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From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

Sugar Crystal Challenge
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This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.

Bright Lights
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In this activity about electricity, learners imagine that they are out in the wilderness and it is getting dark. Their task is to use the materials supplied to build a simple flashlight.

Home Water Audit
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This activity offers learners and their families several ways to raise their awareness together about home water.

Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.

Divide and Conquer
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Learners work in groups to build model cars from paper parts. First, each learner builds cars individually and the group times themselves.

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

Patterns and Relationships: Struts 'n Stuff
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In this math lesson, learners identify the relationship between the number of sides in a regular polygon and the number of struts needed to make each polygon rigid.

Patterns and Relationships: The Magic Box
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In this math lesson, learners participate in a variety of activities that give them experience in recognizing, describing, and extending repeating and arithmetic patterns.

Making a Simple Astrolabe
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In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

Hot Cans and Cold Cans
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Learners apply their knowledge of heat transfer to design two cans - one that will retain heat and one that will cool down quickly.

How Greenhouse Gases Absorb Heat
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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

Measure the Pressure II: The "Dry" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.

Shadow Puppets
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In this activity, learners explore color, light and shadow by creating their own puppets to hold in front of a light source.

Airplane Wing Investigation
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This activity (located on page 3 of the PDF under GPS: Balloon Fiesta Activity) is a full inquiry investigation into Bernoulli’s principle and airplane wings.

How Sweet It Is
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In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

Bone Basics
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This is an activity (on page 2 of the PDF under Bone Regrowth Activity) about the two main components of bone - collagen and minerals (like calcium) - and how they each contribute to its flexibility a