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Showing results 661 to 680 of 809

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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this activity, learners identify the DNA base bars guanine, cytosine, thymine and adenine. Learners create a DNA model using colored paper clips to resemble these base pairs.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

$1 - $5 per student Ages 14 - 18 30 to 45 minutes
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This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.

1 cent - $1 per group Ages 11 - 18 10 to 30 minutes
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Learners explore how the attractive forces between water molecules create surface tension and allow certain objects to float on the surface of water.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity about physical stress (page 28 of PDF), learners discover that muscles and bones need to work to stay strong.

$1 - $5 per group Ages 6 - 11 1 to 4 weeks
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In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community.

free Ages 8 - 14 2 to 4 hours
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Learners will explore the chemistry of mucous and its importance to our health by following a process to make their own replica "snot." The activity includes a time and age recommendation, a materials

$1 - $5 per group Ages 6 - adult 10 to 30 minutes
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In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners cover a bottle with a balloon. When they immerse the bottle in warm water, the balloon inflates. When they immerse the bottle in a bowl of ice, the balloon deflates.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this activity about heart health (on page 34 of the PDF), learners measure their own blood pressure using an electronic blood pressure monitor with a self-inflating cuff (included in cost of materi

Over $20 per group Ages 8 - 14 1 to 2 hours
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Over the course of several days, learners explore the property of water that helps plants move water from roots to leaves or gives paper towels the capacity to soak up water.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners investigate how geometry plays a role in perspective.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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This is a fun activity about the power of the Sun and the importance of using sunscreen to protect your sensitive skin from its rays.

$1 - $5 per student Ages 4 - 11 4 to 24 hours
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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 activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.

$1 - $5 per student Ages 4 - 14 4 to 24 hours
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This is an activity (located on page 3 of the PDF under Butterfly Wings Activity) about how visible light is affected by tiny nanoscale structures, producing iridescence on butterfly wings, soap bubbl

$10 - $20 per group Ages 8 - 14 1 to 2 hours