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Showing results 301 to 320 of 1256

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In this activity, learners test to see if carbon dioxide is present in the air we breathe in and out by using a detector made from red cabbage.

Over $20 per group Ages 8 - adult 10 to 30 minutes
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In this outdoor activity/field trip, learners catch and observe water striders to explore their movement and feeding behaviors.

$10 - $20 per group Ages 6 - 14 1 to 2 hours
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In this activity about light and reflection, learners use a special device called a Mirage Maker™ to create an illusion.

Over $20 per student Ages 8 - 14 5 to 10 minutes
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In this activity, learners use food scraps from the kitchen to grow new vegetables.

$1 - $5 per group Ages 6 - adult 1 to 4 weeks
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In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).

1 cent - $1 per group Ages 11 - adult 45 to 60 minutes
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In this optics activity, learners create flip books by drawing an image like an eye opening and closing on 24 small pages of paper.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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Learners create a model of a wetland to observe how it absorbs and filters water from the environment.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

$5 - $10 per student Ages 8 - 18 45 to 60 minutes
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In this activity (on pages 34-39), learners make a fairly detailed model of DNA using licorice and gumdrops.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this optics activity, demonstrate diffraction using a candle or a small bright flashlight bulb and a slide made with two pencils.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems.

$10 - $20 per group Ages 11 - 14 4 to 24 hours
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In this activity, learners will build a design and build a place for pollinators to drink from.

$1 - $5 per student Ages 4 - adult 1 to 7 days
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.

1 cent - $1 per group Ages 4 - 14 4 to 24 hours
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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 20 arm curls with cans that simulate the weight of beans on Earth versus the weights of the same number of beans on the Moon and in space.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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This game is like regular bingo, except the clues are sounds.

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners play an evolution card game to see how selective pressures can affect an organism's evolution.

1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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In this activity (on pages 2-8), learners experience how scientists use classification in their study of animals.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures.

1 cent - $1 per student Ages 6 - 18 1 to 2 hours
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In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months.

Over $20 per student Ages 8 - 18 1 to 12 months