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Soap: Sometimes oil and water do mix!
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In this activity (on page 2 of PDF), learners mix oil and water. Then, they add soap and observe what changes! The activity demonstrates how oil and water don't mix, except when soap is added.
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.
Straw Kazoo
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In this activity, learners make some music by constructing a kazoo out of a simple plastic drinking straw. Use this activity to explore sound, vibrations, and music.
The Three Little Pigments: Science activity that demonstrates the primary and secondary colors of lightScience activity that demonstrates the primary and secondary colors of light The Three Little Pigments Know your C, M, Y, and K.
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Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image.
Hole in Your Hand
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Create an illusion where it appears that your hand has a hole in it. You'll see the results from when one eye gets conflicting information.
Root Beer Float
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.
Egg-Citing Physics
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In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open.
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.
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.
Motor Effect
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See what force a magnet has on a wire that has current running through it: will it push it, pull it, or will nothing happen? This is the foundation of a simple electric motor.
Persistence of Vision
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If you had a long tube with a 5 millimeter wide slit, would you see the entire Golden Gate Bridge?
Balancing Ball: Suspend a ball in a stream of air
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Balance a ball in the air with a hair dryer! This Exploratorium produced activity shows learners concepts like lift and air streams. You can try many different angles, speeds, and ball types.
Lateral Inhibition
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Which one of your eyes are dominant? Do they act independently or are they equally "in control?" This activity explores how your eyes work (or don't work) together.
Anti-Sound Spring
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What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.
Take Out the Trash
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Learners explore how recyclers take advantage of the different properties of materials, such as magnetism and density, to separate them from a mixture.
Falling Rhythm
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Listen to the beat of gravity. By taking two strings with weights tied to them at different, yet uniform intervals, you can hear the uniformity (and rhythm) of gravity's accelerating pull.
Pop Rockets
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Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.
Static Electricity
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In this quick activity, learners explore static electricity using a plastic comb, wool cloth, puffed rice, and a plastic bag.
Air Lift
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In this physics activity, challenge learners to lift a book with just air using a plastic bag and a straw. This activity demonstrates compressed air and forces.
Magic Disc
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In this activity, learners create an optical illusion by spinning two attached cups. A round ball seems to magically appear when the cups spin.