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Showing results 861 to 880 of 1005

Critical Angle
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In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.

The Blind Spot
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In this activity (1st on the page), learners find their blind spot--the area on the retina without receptors that respond to light.

See It to Believe It: Visual Discrimination
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In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.

Measuring Your Blind Spot
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In this activity, learners calculate the width (horizontal diameter) of the blind spot on their retina. Learners make a blind spot tester using a piece of notebook paper.

Magical Möbius
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In this tabletop activity (on pages 32-40), learners make Möbius strips -- 3D surfaces with only one side.

Expose Your Nose
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In this simple exploratory activity (1st activity on the page), blindfolded learners try to identify mystery items by smell.

Dr. Vet: Noses, Ears, Legs and Eyes
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In this activity, learners practice counting and multiplication as they figure out how many animal body parts they have to examine as "Dr. Vet."

Creating Tostadas
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In this activity, learners develop their understanding of combinations as they create as many different kinds of tostadas as possible.
Spin to Win!
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In this math activity, learners play a probability game and try to be the first to get to the end of the game board path .This activity guide contains a material list, black line masters for the game

How Loud is Too Loud
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In this activity (described on pages 39-42 of PDF), learners make a paper wheel (on pages 57-60 of PDF) that shows them the relative loudness of different sounds.

Clothespin Workout
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This is a great activity about human energy production. Learners will work out with a clothespin to investigate why hockey players jump on a stationary bike after an intense game.

Magic Wand
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In this activity about light and perception, learners create pictures in thin air.

Beyond Dominoes: Polyominoes
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In this activity, learners add squares to paper dominoes to make polyominoes.
The Ripple Tank
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In this optics activity, learners create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of waves.

Graph Dance
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In this activity, learners "dance" (move back and forth at varying speeds) by reading a graph. This is a kinesthetic way to help learners interpret and understand how motion is graphed.

Helicopter Twirl
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Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries.

Jem's Pykrete Challenge
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In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.

Flying Tinsel
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Play keep away from your cat by using a static charge to suspend a piece of tinsel in the air. This Exploratorium produced activity also features videos to help create and learn about this phenomenon.

Designer Ears: Make “better” ears!
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Find out what it would be like to have ears shaped differently from your own! Design and make different animal ears then try them out.
Sea State: Forecast Conditions at Sea
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In this oceanography and data collection activity, learners cast real time sea state conditions using buoys from NOAA's National Data Buoy Center.