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Guar Gum Slime
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In this activity, learners create a gelatinous slime using guar gum powder and borax. Educators can use this simple activity to introduce learners to colloids.

Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.

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

Shimmering Lenses
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In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

Rate of Solution Demonstration
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.

One In The Hand
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In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.

Diffusion of Water with Gummy Bears
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In this activity, learners investigate the movement of water into and out of a polymer. Learners test the diffusion of water through gummy bears, which are made of sugar and gelatin (a polymer).
Are you a Supertaster?
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In this activity, learners examine their tongue and taste buds.

Hot & Cold
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In this activity, learners experiment with hydrogen peroxide, vinegar, yeast, and baking soda to produce hot and cold reactions. Use this activity to demonstrate exothermic and endothermic reactions.

Get the Porridge Just Right
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Learners set up three different bowls, each with a different mass of oatmeal. Learners monitor the temperature of the oatmeal and find that larger masses take longer to cool.

Inverted Bottles
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In this activity, learners investigate convection by using food coloring and water of different temperatures.

Adherence to HIV Treatment
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In this activity, learners simulate taking HIV antiretroviral drugs by using Tic Tac mints and Kool-Aid packets.

Shape Up!
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In this activity (25th on the page) about learning and memory, learners explore a training method that animal trainers employ called "shaping." Working in pairs, learners will attempt to "shape" each

Dancing Spaghetti
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In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

Why is the Sky Blue?
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In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.
Stability of Egg White Foams
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In this chemistry meets cooking activity, learners compare the stability of egg white foams with various additives.

Lifting Lemon
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In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.

Air-filled (Pneumatic) Bone Experiments
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Just like birds, some dinosaurs had air-filled (pneumatic) bones, which made the dinosaurs' skeletons lighter.

Yeast DNA Extraction
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This laboratory exercise is designed to show learners how DNA can easily be extracted from yeast using simple materials.

Small Habitats
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In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).