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Exploring Shadows
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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan
Eye Spy
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This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.
Penny Cup Game
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In this optics activity, learners conduct an experiment to find out why two eyes are better than one!
Peripheral Vision
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In this optics activity, learners conduct an experiment to explore peripheral vision. Learners collect data about their ability to see shapes, colors, or letters using their peripheral vision.
Train Your Brain
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In this activity, learners play a trick on their own brain to see if the brain can learn to ignore distracting input. Colors and words are used to play the visual trick, known as a Stroop Test.
Reaction Time
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In this activity, learners conduct an experiment to test how fast they can react. Learners try to catch a piece of paper with a ruler printed on it (or a ruler) as quickly as they can.
Motion Picture
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During this hands-on activity, learners are briefly exposed to moviemaking and animation, when they create their own thaumatropes.
Phenakistascope
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In this optics activity, learners build an animation tool to make mini movies. When you spin a phenakistascope, the pictures move so quickly that your eyes and brain can't separate the images.
Kaleid-o-mania
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In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.
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.
Arrows
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In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.
Thaumatrope
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In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.
Special Effects: Titanic and Beyond
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In this activity, learners investigate how geometry plays a role in perspective.
Seeing Is Believing
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'
Periscope
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In this optics activity, learners build a spy tool to secretly view things over walls or around corners.
Size It Up
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In this artistic activity, learners blow up a smaller picture into a larger one, by using a grid.
Afterimage
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In this optics activity, learners investigate afterimages.