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In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes
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Build and test a scale model of a rainforest canopy walkway.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique. This activity allows you to see long, stringy strands of DNA extracted from wheat germ.

$1 - $5 per group Ages 8 - adult 10 to 30 minutes
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This activity requires a Pico Cricket (tiny computer). Learners work on designing and building a sound sensor out of household materials, like plastic wrap and cardboard.

Over $20 per group Ages 8 - 18 2 to 4 hours
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In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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This activity has learners interacting with live crayfish, but could be adapted for a variety of similar hardy and interesting organisms.

Over $20 per group Ages 4 - adult 10 to 30 minutes
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In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique.

$5 - $10 per group Ages 8 - adult 10 to 30 minutes
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

$5 - $10 per group Ages 8 - 14 1 to 4 weeks
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In this activity, learners construct an indoors obstacle course and discover how using an eye patch can help them complete the course in the dark.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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This hands-on astronomy activity allows you to create a “cutaway” telescope to clearly show how reflector and refractor telescopes work.

Over $20 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this creative activity, learners will find out what makes an insect an insect by studying examples of insect adaptations and by examining why there are so many different types of insects.

free Ages 6 - 14 45 to 60 minutes
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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In this activity about depth perception, learners create an optical illusion in a shoe box.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this activity, learners cut out and assemble wheels to explore how variations in fish body structures (mouth shape/position/teeth, body shape, tail shape, and coloration patterns) allow fish to sur

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners role-play the part of lake inhabitants and the aquatic exotics who displace the native species.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things.

$1 - $5 per group Ages 4 - 14 1 to 2 hours
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In this activity, learners conduct a scientific investigation involving decomposition and discover that the life cycle of trash is affected by its organic or inorganic nature.

free Ages 6 - 14 1 to 12 months