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In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

per group Ages 14 - adult 1 to 2 hours
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In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.

free Ages 6 - adult 5 to 10 minutes
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In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States.

free Ages 14 - adult 1 to 2 hours
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In this activity, learners extract DNA from their own cheek cells, then create a rudimentary DNA profile similar to those seen on crime scene dramas.

Over $20 per group Ages 11 - adult 1 to 7 days
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In this activity, learners are challenged to build a bird feeder using recycled materials from home and are encouraged to problem solve during the extensions.

$5 - $10 per student Ages 6 - adult 30 to 45 minutes
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In this activity, learners will construct an air cannon as a model for the human ear.

$1 - $5 per student Ages 11 - adult 10 to 30 minutes
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Using a vertical wind tube and using simple materials, individuals and groups attempt to design a "satellite" that floats for at least 5 seconds.

$1 - $5 per student Ages 4 - adult 30 to 45 minutes
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In this activity, learners touch and observe skulls of sharks and rays to learn about their diversity (over 400 species of sharks alone!).

Over $20 per group Ages 4 - adult 5 to 10 minutes
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This is an activity/demo in which learners are exposed to the difference bewteen hydrophobic surfaces (water repelling) and hydrophilic surfaces (water loving).

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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In some parts of the world, lakes freeze during winter. In this activity learners will explore water’s unique properties of freezing and melting, and how these relate to density and temperature.

$5 - $10 per group Ages 8 - adult 10 to 30 minutes
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In this fun and, at times, hilarious force and motion activity, learners will use household objects to build a crazy contraption and see how far they can get a tennis ball to move.

$1 - $5 per group Ages 4 - adult 1 to 2 hours
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In this activity, learners build their own magnetometer using an empty soda bottle, magnets, laser pointer, and household objects.

$5 - $10 per student Ages 11 - adult 1 to 2 hours
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Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.

$10 - $20 per group Ages 14 - adult 45 to 60 minutes
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In this activity, learners will use simple materials to explore centripetal force and variables by swinging a cup of water without having the water spill out.

free Ages 6 - adult 10 to 30 minutes
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In this activity, learners will explore how maps can provide information about a place and help us find our way from one location to another.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners use tsunami time travel maps to predict how long it will take a tsunami to reach the shore.

free Ages 14 - adult 1 to 2 hours
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Focus sound through a balloon! In this Exploratorium activity, you'll use dry ice to create a balloon that's a sound lens.

$1 - $5 per student Ages 6 - adult 5 to 10 minutes
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In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers.

$5 - $10 per group Ages 14 - adult 30 to 45 minutes
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In this hands-on activity, learners make the world's simplest Cartesian diver, using only a plastic bottle, some water, and a condiment packet.

free Ages 6 - adult 5 to 10 minutes