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Showing results 181 to 200 of 249

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In this activity (on pages 13-16 of the PDF) learners investigate three mystery samples to see which one contains life. The three samples are sand, sand and yeast, and sand and antacid.

1 cent - $1 per group Ages 4 - 14 30 to 45 minutes
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In this activity, learners investigate the process of osmosis by adding salt to a sealed bag of raw carrots and comparing it to a control.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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During this interactive "survival" game, students learn about the importance of camouflage and how it helps animals to blend into their surroundings, as either predator or prey.

$1 - $5 per group Ages 6 - 11 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 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 outdoor activity, learners investigate spider webs and feeding behavior, particularly how spiders trap food in their sticky silk webs while not getting stuck themselves.

$5 - $10 per group Ages 6 - 18 45 to 60 minutes
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In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this outdoor activity, learners construct bird feeders and set them up at to investigate bird behavior for one or two weeks. Multiple feeder designs are suggested.

$10 - $20 per group Ages 6 - 14 1 to 4 weeks
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In this two-part activity, learners use household items to smell the difference between some stereoisomers, or molecules which are mirror images of one another.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

1 cent - $1 per group Ages 4 - 14 10 to 30 minutes
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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To convey the concept of how animals adapt to survive, this game asks learners to imagine what adaptations a given animal would need to live in a certain environment—including environments where such

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.

$1 - $5 per group Ages 4 - 14 1 to 4 weeks
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In this activity on page 8 of the PDF, learners investigate vitamin C. Learners conduct a chemistry experiment to determine if Tang drink mix or orange juice contains more vitamin C.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

$1 - $5 per student Ages 6 - adult 30 to 45 minutes
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In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it.

$5 - $10 per student Ages 8 - adult 1 to 7 days
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In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this outdoor activity and game, learners explore how animals adapt for survival through coloration, markings and camouflage.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes
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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