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DNA Extraction from Cheek Cells
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DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique.
Dancing Spaghetti
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In this chemistry activity, learners use spaghetti to explore density and chemical reactions.
Production of Oxygen
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In this chemistry activity, learners use yeast and hydrogen peroxide to generate a gas (oxygen) and test some of its properties.
Shrinkers
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In this hands-on activity, learners use heat to shrink samples of polystyrene plastic (#6 recycle code). Learners compare the size and shape of the plastic pieces before and after shrinking.
Concentrate!
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In this investigation of reaction kinetics, learners alter the amount of iodate solution mixed with the same amount of starch solution.
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.
Peanut Butter and Jelly Robot
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This is an activity about robotics programming. Learners will discover how precise programmers have to be as they instruct a friend to make a peanut butter and jelly sandwich.
Our Sense of Touch: Two-Point Discrimination
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In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.
How to Extract DNA From Anything Living
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In this genetics activity, learners discover how to extract DNA from green split peas.
Chemical Breath
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This is a chemistry lab activity about solutions (page 7 of the PDF). Learners see firsthand how chemicals in a solution can combine to form an entirely different substance.
Our Sense of Sight: Eye Anatomy and Function
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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.
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).
See the Light
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.
Designer Seeds
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In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.
Chemistry Is Colorful
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In "Chemistry is Colorful" learners explore different materials through paper chromatography.
Making Sense of Sensors
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In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.
Test Density with a Supersaturated Solution
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Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.
Equatorial Sundial
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In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the sundial.
To Dye For
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Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.
Measuring the Wind
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In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.