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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.
Reflections
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In this quick activity, Dracula has a hole in his house and learners help solve the problem by using a mirror and protractor to reflect incoming light out of his house.
Michelle O (formerly Vanna)
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We don't normally view people upside down and so our brains aren't accustomed to it.
Circles or Ovals?
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This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?
Balloon Inside a Bottle
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In this activity about phase change and condensation, learners boil water in an empty pop bottle in the microwave.
Make Money Appear Before Your Eyes
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In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves.
Release the Rainbow
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In this activity, learners create a water prism to break light into the seven colors of the rainbow.
Guiding Light
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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).
Coupled Resonant Pendulums 2
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Create a simple dual pendulum and get them to swing in identical ways. This is a simple, low cost, activity produced by the Exploratorium.
Trading Places
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In this activity, learners discover that atoms and ions of different metals will change places.
Floating Golf Ball
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Visitors observe a graduated cylinder with a golf ball floating about halfway in liquid. The bottom half of the cylinder contains a concentrated solution of salt.
Go with the Flow
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In this activity, learners discover how hard their hearts work to pump blood.
Slinky in Hand: Make waves without getting wet
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Play with a slinky and make transverse waves. In this simple Exploratorium Science Snack, learners will experience making waves and will learn the different parts of a wave.
Head Harp
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Put a string around your head, and play it! Learn about vibration, sounds, and pitch.
Depth Perception
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In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.
Think Fast!
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This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.
Let's Go Ice Fishing
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In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
Dye Detective
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Learners analyze mixtures of dyes using filter paper chromatography. They place spots of the different dyes at the bottom of a piece of filter paper, and hang the paper to touch the surface of water.
Arrows
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In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.