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Showing results 1 to 20 of 68
Fragile Waters
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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.
Creepy Crawlers
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Trick your family and friends with this creepy crawler that moves up and down. In this activity, learners construct a circuit and motor device that will move a homemade spider in a spooky way.
Cartesian Diver
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In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.
Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
Universal Indicator Rainbow Trout
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In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases.
Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
Temperature Time Warp
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In this activity, learners explore the behavior of cold-blooded animals. Learners discover what happens when they change a fly's temperature.
Dark Adaptation
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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.
Crunch Time
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In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.
Hexagon Hunt
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This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.
Lever Cowboy
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.
Amphibian Skin
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.
Rubber Blubber Gloves
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In this experiment, learners work in pairs to create two gloves -- one that contains a layer of shortening (blubber) inside, and one that doesn't.
River Catcher
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.
Caller ID: The Frog - and Toad! - Mating Game
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This activity is a sensory experience that recreates the sounds of a pond at night.
Glow Up
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In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.
The Great Plankton Race
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.
Motor Bird
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In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.
Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.
Living Clocks
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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.