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Showing results 121 to 140 of 284

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In this activity (14th activity on the page) about the sense of touch, learners examine if it is easier or harder to identify an object if they move their hands over it.

free Ages 4 - 18 5 to 10 minutes
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In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

$1 - $5 per group Ages 8 - 18 5 to 10 minutes
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In this activity (13th on the page), learners complete a simple illusion trick to see through their own hand.

1 cent - $1 per group Ages 8 - 18 Under 5 minutes
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In this activity, learners create an origami model of DNA, demonstrating its double helix structure.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.

free Ages 6 - adult Under 5 minutes
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In this activity about olfaction (7th activity on the page), learners use natural ingredients to concoct their own perfume.

$1 - $5 per group Ages 8 - 18 4 to 24 hours
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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

free Ages 14 - 18 1 to 2 hours
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Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.

1 cent - $1 per student Ages 4 - adult 5 to 10 minutes
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We don't normally view people upside down and so our brains aren't accustomed to it.

free Ages 4 - 18 Under 5 minutes
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When you teeth clatter, they make quite the racket disproportionately to how much they actually sound to someone else.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?

1 cent - $1 per student Ages 4 - adult Under 5 minutes
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

free Ages 6 - adult 5 to 10 minutes
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

$1 - $5 per group Ages 4 - 18 1 to 2 hours
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In this activity, learners gain knowledge about how carbon moves through all four of the Earth’s major spheres (biosphere, hydrosphere, atmosphere, and lithosphere), and understand how humans influenc

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners explore sound by constructing tube zithers, stringed instruments from Southeast Asia and the South Pacific.

$5 - $10 per student Ages 6 - 18 45 to 60 minutes
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In this activity, learners create virus models, including nucleic acid and proteins, using simple materials. This resource includes information about virus structure and gene therapy.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes