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Showing results 141 to 160 of 809

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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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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.

$5 - $10 per group Ages 8 - 18 1 to 4 weeks
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In this calculus activity, learners use a classic problem of geometrical probability to find an important mathematical constant (pi).

$1 - $5 per group Ages 14 - 18 10 to 30 minutes
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This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

Over $20 per group Ages 11 - adult 2 to 4 hours
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In this four-part laboratory exercise, learners investigate properties of Tobacco mosaic virus (TMV) including (1) symptoms induced by the virus in susceptible plants at the macroscopic and microscopi

Over $20 per group Ages 14 - 18 1 to 7 days
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In this biology activity, learners use plastic pipettes to cut wells into the solid gel layer of agar in petri dishes and place solutions of simulated antigen and antibody preparations into the wells.

Over $20 per group Ages 14 - 18 45 to 60 minutes
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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

$1 - $5 per group Ages 11 - 18 Under 5 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity related to climate change, learners create and explore topographical maps as a means of studying sea level rise.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes
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This is an online game that explores speed, range and momentum. Learners will pick the winners in a 16-team tournament in 3 events: Tug-o-war, sprint, and marathon.

free Ages 8 - 18 10 to 30 minutes
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Learners build simple catapults and use them to launch cotton balls.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.

1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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In this set of outdoor games, learners play the role of monkeys that are trying to get enough resources (food, shelter, and space) to survive.

Over $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners perform an experiment that models a chromatography-like process called electrophoresis, a process used to analyze DNA.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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This is a comprehensive lesson plan on page 85 for a group cleanup trip to a local beach, lake or stream. Learners keep track of the types and amounts of trash picked up and analyze this information.

$5 - $10 per group Ages 14 - 18 1 to 7 days