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In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

free Ages 8 - 18 30 to 45 minutes
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In this activity, learners use colored candy to represent subatomic particles and make a model of an atom (Bohr model).

$1 - $5 per student Ages 14 - 18 30 to 45 minutes
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In this data analysis and environmental science activity, learners evaluate the feasibility of wave energy as a practical alternative energy source using ocean observing system (OOS) buoys.

free Ages 14 - adult 1 to 2 hours
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In this activity (pages 5-7), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.

$5 - $10 per student Ages 8 - adult 10 to 30 minutes
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In this activity, learners identify different classes of matter based on physical properties.

$5 - $10 per group Ages 14 - adult 45 to 60 minutes
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In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night.

free Ages 8 - 18 1 to 2 hours
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In this activity, learners conduct an experiment to find the volume of one mole of gas. Learners capture sublimated gas from dry ice in a ziploc bag and use water displacement to measure its volume.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this math activity, learners observe and sketch cracking patterns in pavement.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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This activity lets learners participate in the process of reconstructing a phylogenetic tree and introduces them to several core bioinformatics concepts, particularly in relation to evolution.

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.

free Ages 14 - 18 45 to 60 minutes
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Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.

free Ages 4 - 18 5 to 10 minutes
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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 chemistry activity, learners use common chemicals to examine reactions that occur between two aqueous solutions.

$1 - $5 per student Ages 11 - 18 5 to 10 minutes
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In this chemistry activity, learners make indicator solution from red cabbage. Then, learners test everyday foods and household substances using the cabbage juice indicator.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners will explore trends in shark populations using shark landing data from the National Marine Fisheries Service.

free Ages 14 - 18 45 to 60 minutes
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In this activity, learners model a population of deer and see how the number of deer changes over time.

free Ages 11 - 18 10 to 30 minutes
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In this experiment, pairs of learners explore how cold water affects circulation. The mammalian diving reflex (MDR) slows circulation when the body is exposed to cold water.

free Ages 8 - 18 30 to 45 minutes
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In this math lesson (page 2 of the PDF), learners use bottles of various shapes to explore the abstract concept of rate of change.

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners examine nanoscale structures of common things.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes