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This activity aims to stimulate discussion on the question of whether computers can exhibit “intelligence,” or are ever likely to do so in the future.

free Ages 11 - 18 10 to 30 minutes
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In this activity related to flight, learners conduct two simple tests to explore how lift works.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this activity, learners explore how engineering has developed various means to remove impurities from water.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this outdoor activity and animal-role-play game, learners discover and uncover the hidden world of "cryptozoa"—organisms such as spiders, salamanders and slugs that live under objects, like rocks a

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this amazingly simple physics activity (page 5 of the PDF), learners will explore how exerting a force on an object can give it kinetic energy and momentum.

1 cent - $1 per student Ages 11 - 14 10 to 30 minutes
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In this activity, learners explore dinosaur fossils by making an edible treat. First, learners read "Dinosaur Bones" by Aliki to examine how fossils are formed.

$10 - $20 per group Ages 6 - 8 45 to 60 minutes
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In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

$5 - $10 per group Ages 6 - 14 45 to 60 minutes
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In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most to learn about the different sizes of dinosaurs.

1 cent - $1 per group Ages 6 - 8 45 to 60 minutes
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In this math lesson, learners determine and compare the rate of descent of various learner-constructed parachutes. Learners construct parachutes that will have maximum hang times.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this chemistry activity (page 8 of the PDF), learners will identify the instances of physical change, chemical change, and solutions while making homemade soda pop.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this outdoor fall activity, learners find out what living in or under a layer of leaves is like.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners use bubbles to investigate the structure and unique properties of cell membranes. Bubbles serve as macroscopic models that mimic the cells' phospholipid bilayers.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners use open inquiry to learn about the process of science as well as gain experience regarding the Law of Conservation of Mass, dissolution, and density.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed.

1 cent - $1 per group Ages 11 - adult 5 to 10 minutes
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In this activity (page 10 of PDF), learners approximate the area of the uppermost cross section of an impact crater using a variety of square grids.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes