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Showing results 621 to 640 of 645

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In this activity, learners work in groups to match craft sticks that represent chromosomes. Learners must define critical attributes of their chromosomes as they look for matching chromosomes.

$1 - $5 per group Ages 11 - 18 1 to 2 hours
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Learners design and build a roller coaster using simple materials. Learners experiment with potential and kinetic energy to get a marble to follow a track into a cup.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners will investigate and compare the root systems of plants. Explore how weed and edible plant roots differ, and take a closer look inside with the careful use of a knife!

$1 - $5 per group Ages 4 - 18 10 to 30 minutes
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In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program.

$1 - $5 per student Ages 14 - 18 45 to 60 minutes
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This is an activity where learners will discover what types and how many insects live in their own backyard.

$1 - $5 per student Ages 4 - 18 30 to 45 minutes
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In this activity, young learners and their caregivers use non-standard tools, like M&Ms and paper clips, to measure things around their home.

$1 - $5 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners explore the strength of different shapes. Fold paper into triangles, squares, and other shapes, then experiment with how much weight they can hold.

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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In this activity, learners explore a bucket of sand and beach objects.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners construct a small "air cannon," and use its airflow to put out a candle (lit with the help of an adult).

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this lab (Activity #1 on page), learners compare bacteria growth on two petri dishes containing nutrient agar: one that has been touched by a finger washed only with water and one that has been tou

$1 - $5 per group Ages 8 - 18 1 to 7 days
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This three-part activity shows learners how to build three meteorology tools: a wind vane, a rain gauge, and a barometer.

$1 - $5 per student Ages 8 - 14 1 to 7 days
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In this activity, learners build a kite out of paper, change it, and try to make it fly even better. With their new knowledge of kite making, students can then go on to create their own kite designs.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this activity, learners thread colored beads onto string. Each beach represent a process of the water cycle.

$1 - $5 per student Ages 8 - 11 Under 5 minutes
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In this design challenge activity, learners invent a way to send a Ping-Pong ball flying high enough to catch it - like football with a twist!

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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In this math activity, learners play a game and try to collect the most cards by guessing if the next number to appear will be odd or even.

$1 - $5 per group Ages 4 - 8 5 to 10 minutes
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In this quick activity about pollutants and groundwater (page 2 of PDF under Water Clean-up Activity), learners build a model well with a toilet paper tube.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this physics activity (page nine of the pdf), learners use balloons to explore how a rocket works. It is suggested they also work to see how they can alter the velocity of the rocket.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this physics activity (page 4 of the PDF), learners will construct their own spiral "snake" and use it to explore the relationship between heat and kinetic energy.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this physics activity (page 4 of the PDF), learners will--using nothing more than a coat hanger and some string--explore and understand sound energy and how it moves.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes