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Showing results 141 to 160 of 287

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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 robotics activity, learners drive a remote-controlled car through a course to learn the challenges faced while trying to operate a planetary rover.

1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners build a water squirter using a PVC pipe, dowel, and foam. This activity is great for the summer time and introduces learners to forces and water pressure.

$5 - $10 per student Ages 6 - 18 45 to 60 minutes
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In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

free Ages 11 - adult 10 to 30 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
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In this lab, learners evaluate the relative effectiveness of various chemical substances (i.e. garlic powder, bathroom cleaner, mouthwash, etc.) as antimicrobial agents.

$5 - $10 per student Ages 11 - 18 4 to 24 hours
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In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

free Ages 8 - adult 10 to 30 minutes
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In this activity (pages 26-29 of the PDF), learners investigate how they can develop super memories by using mnemonic devices.

free Ages 8 - 18 30 to 45 minutes
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In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.

1 cent - $1 per student Ages 8 - 18 4 to 24 hours
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In this activity, learners try to put together toy bricks—wearing oven mitts on their hands! This activity shows learners how difficult it is to build small things when your tools are too big.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.

$10 - $20 per group Ages 14 - 18 1 to 7 days
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In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.

$1 - $5 per group Ages 14 - 18 4 to 24 hours
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In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

$1 - $5 per group Ages 11 - 18 5 to 10 minutes
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In this activity related to climate change and data analysis, learners examine temperature and precipitation data to determine if climate variations are due to El Niño.

free Ages 14 - 18 1 to 2 hours
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In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.

$10 - $20 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners discover the importance of maps and scale as they work together to create a map of the classroom.

free Ages 11 - 18 45 to 60 minutes
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This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this mathematics activity (page 4 of the PDF), learners will explore the relationship between the diameter and circumference of an object.

$1 - $5 per student Ages 11 - 18 10 to 30 minutes
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In this math lesson, learners explore the relationship between the thickness of a spaghetti bridge, the length of the bridge, and the amount of weight that can be supported by the bridge.

$5 - $10 per group Ages 14 - 18 45 to 60 minutes