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Showing results 61 to 80 of 186

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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).

free Ages 8 - 14 Under 5 minutes
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In this activity, learners will determine if the frequency and intensity of hurricanes are changing using real data from the National Hurricane Center.

free Ages 14 - 18 1 to 2 hours
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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 activity, learners will compare predicted and observed tides using data from The National Oceanic and Atmospheric Administration(NOAA).

free Ages 14 - 18 45 to 60 minutes
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In this activity, learners will use simple materials to explore centripetal force and variables by swinging a cup of water without having the water spill out.

free Ages 6 - adult 10 to 30 minutes
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In this online Flash game, learners test their engineering know-how, moving a collection of mechanical parts onto a board to make complete a system of parts that will move a ball from start to finish.

free Ages 6 - 14 5 to 10 minutes
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This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.

free Ages 6 - 18 5 to 10 minutes
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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 lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

free Ages 11 - 14 45 to 60 minutes
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In this activity (located on pages 9-14 of PDF), learners visit a cemetery to examine the distinguishing characteristics of rock weathering.

free Ages 8 - 14 1 to 7 days
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In this activity (page 10 of the PDF) learners will explore the historical progression of siege weapons to gain an understanding of how the addition and modification of parts can change the efficiency

free Ages 14 - 18 2 to 4 hours
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This is an online Flash game where learners can experiment with ballistics and how to compensate for the varying levels of gravity found on the planets of our Solar System.

free Ages 6 - 14 5 to 10 minutes
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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.

free Ages 6 - 14 30 to 45 minutes
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In this experiment, pairs of learners explore how cold water affects circulation. The mammalian diving reflex (MDR) slows circulation when the body is exposed to cold water.

free Ages 8 - 18 30 to 45 minutes
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In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

free Ages 4 - 14 5 to 10 minutes
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In this quick activity (page 1 of PDF under SciGirls Activity: Kites), learners will witness firsthand the effects of Bernoulli’s Principle by capturing a ping pong ball in the stream of air created b

free Ages 8 - 14 10 to 30 minutes
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In this indoor or outdoor demonstration, use a large and small ball to illustrate conservation of energy and momentum.

free Ages 4 - adult Under 5 minutes
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This activity is a sensory experience that recreates the sounds of a pond at night.

free Ages 6 - 11 30 to 45 minutes
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In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.

free Ages 4 - 14 Under 5 minutes
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In this nutrition activity (page 16 of PDF), learners document their individual eating habits and learn whether their eating patterns meet their needs.

free Ages 8 - 14 45 to 60 minutes