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Sodium Acetate Hand Warmers
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In this activity, sodium acetate hand warmers are used to introduce learners to supersaturated solutions, crystallization, and exothermic reactions.
Cook with a Solar Oven
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In this activity, learners make their own solar oven to bake s'mores and learn about how solar energy is absorbed on Earth.
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.
What Does Spit Do?
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Some animals can swallow food whole, but humans have to chew. In this activity, learners will investigate what saliva does chemically to food before we even swallow.
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.
Color-Changing Carnations
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Learners place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves.
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
Good Vibrations
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This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.
Shake It Up!
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Learners drop a magnet through a coil of wire to create electric current in a circuit. LEDs in the circuit allow learners to detect the direction of current flow.
The Carbon Cycle: Carbon Tracker
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In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.
A Penny Saved is a Penny Heard
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In this activity (11th activity on the page), learners use pennies to test their hearing acuity.
Hold It
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In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a
Survival of the Fittest: Variations in the Clam Species Clamys sweetus
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This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific investi
Make Your Own Barometer
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In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer.
The Checks Lab
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A group of learners has an envelope containing a series of bank checks. A few checks are removed at a time, and the team attempts to construct a plausible scenario which involves those checks.
Number of Mentos vs. Height: Soda Geyser Series #5
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In this activity, learners conduct a controlled experiment to examine how many Mentos are needed to make the tallest possible soda geyser.
Reading DNA
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In this activity, learners use edible models of the DNA molecule to transcribe an mRNA sequence, and then translate it into a protein.
Drop IT!: Depth Perception
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These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.
Ready to Observe: Enhance Your Telescope Experience
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This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.
DNA and Histone Model
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In this activity, learners construct a 3-D paper model depicting how histone, acetyl and methyl molecules control access to DNA and affect gene DNA expression.