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In this activity, learners explore accuracy and precision.

Over $20 per group Ages 8 - 18 2 to 4 hours
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Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

1 cent - $1 per group Ages 14 - adult 5 to 10 minutes
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In this optics activity, learners explore diffraction by adding wax blocks to a ripple tank. The wedge-shaped blocks act as obstacles that the wave must bend around.

$1 - $5 per student Ages 14 - adult 5 to 10 minutes
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In this open-ended multicultural lab activity, learners investigate the effectiveness of herbal remedies.

Over $20 per group Ages 14 - 18 1 to 2 hours
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In this data collection activity about crabs, learners use data from the Virginia Institute of Marine Science (VIMS) trawl survey to determine the areas of the Chesapeake Bay that are being used by bl

$1 - $5 per group Ages 14 - 18 1 to 2 hours
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In this activity, learners bake cookies by following different recipes to better understand genetic mutations. Everyone in the group bakes the same type of cookie: chocolate chip.

$10 - $20 per group Ages 14 - 18 1 to 2 hours
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In this activity, learners explore how engineers work in a team to solve problems.

$1 - $5 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how rescue devices are designed to aid professionals during emergency situations.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners look at and touch marine animal skulls to compare them and think about what they eat.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads.

free Ages 6 - 18 Under 5 minutes
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In this activity, learners build a plastic emergence chamber (or use purchased "mini mosquito breeder") to observe and analyze the mosquito life cycle.

Over $20 per group Ages 11 - 18 1 to 4 weeks
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In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners follow step-by-step instructions to build a gel electrophoresis chamber using inexpensive materials from local hardware and electronic stores.

Over $20 per group Ages 11 - 18 45 to 60 minutes
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In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners conduct a controlled experiment to examine how temperature will affect the height of a soda geyser.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this simulation of natural selection, learners use binder clips in three different sizes to represent the diversity of beak sizes in a bird population.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

free Ages 8 - 18 5 to 10 minutes
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In this interactive activity, learners analyze seashells to explore phylogeny and evolution. Learners identify similar and dissimilar seashells to create a phylogenetic tree.

free Ages 11 - 18 10 to 30 minutes
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In this activity, learners explore how engineers work in a team to solve problems.

$5 - $10 per group Ages 11 - 18 1 to 2 hours
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In this activity, learners explore the devices used over time to measure changes in temperature.

$1 - $5 per group Ages 8 - 18 1 to 2 hours