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Showing results 121 to 140 of 2169

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In this activity, learners make slides of onion cells and their own cheek cells. Use this lab to teach learners how to prepare microscope slides and use a microscope.

$5 - $10 per student Ages 8 - 18 45 to 60 minutes
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The purpose of this lab activity is to demonstrate (through simulation) how DNA fingerprinting (or DNA profiling) might be used to solve a crime.

Over $20 per group Ages 14 - 18 2 to 4 hours
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In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this math activity, learners create their own units of measurement by making noodle rulers. Learners practice estimating and measuring objects using the noodle rulers .

$1 - $5 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.

$10 - $20 per student Ages 14 - adult 2 to 4 hours
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In this demonstration/activity, water streaming through holes in the bottom of a suspended soda pop can causes the can to rotate.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this activity, a spinning bicycle wheel resists efforts to tilt it and point the axle in a new direction.

$5 - $10 per group Ages 11 - 18 10 to 30 minutes
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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

$1 - $5 per group Ages 6 - adult Under 5 minutes
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In this simple activity, learners see the production of a gas, which visibly fills up a balloon placed over the neck of a bottle.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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In this activity, learners simulate taking HIV antiretroviral drugs by using Tic Tac mints and Kool-Aid packets.

$5 - $10 per group Ages 11 - 18 1 to 4 weeks
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In this electrochemistry activity, learners will explore two examples of electroplating.

$10 - $20 per group Ages 14 - 18 1 to 2 hours
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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

free Ages 11 - 14 45 to 60 minutes
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Learners will compare the growth rate and appearance of crystals forming on small rocks to those growing on miscellaneous objects. Learners will also investigate how temperature (warm vs.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this health activity (located on page 4 of the PDF), learners will discover the importance of hand washing by observing mold growing on potatoes.

$10 - $20 per group Ages 6 - 11 1 to 4 weeks
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In this activity, learners explore the relationship between electric charges and magnetic fields.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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This is a quick activity (located on page 2 of the PDF under Nasturtium Leaves Activity) about surface tension.

free Ages 8 - 14 10 to 30 minutes
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In this art meets science activity, learners pack silver, ball-shaped ornaments in a single layer in a box to create an array of spherical reflectors.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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Learners create hard water by mixing Epsom salt and water. Then they compare what happens when soap solution is mixed with hard water and regular water.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes