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Showing results 861 to 873 of 873

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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 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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This activity (located on page 4 of the PDF under GPS: Baby Dinosaurs Activity) is a full inquiry investigation to determine the age of fossils based on where they are discovered.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this "Sid the Science Kid" activity from Episode 107: My Shrinking Shoes, learners observe how plants change as they grow.

$5 - $10 per group Ages 4 - 6 1 to 4 weeks
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What is the optimal environment for hatching brine shrimp? Using a scaffold, learners design and conduct experiments testing the effect of a single abiotic factor on brine shrimp cyst hatch rate.

Over $20 per group Ages 11 - 18 1 to 7 days
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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners model atmospheric convection currents using food coloring, water, and clear cups. Activity includes step-by-step instructions, STEM connections, and more.

$1 - $5 per group Ages 4 - 18 5 to 10 minutes
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In this activity, learners use sets of cards to assign microorganisms to different groups.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners make a flip book that shows the progression of two solar events on reversible sides of the flip book.

1 cent - $1 per student Ages 11 - 14 45 to 60 minutes
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Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.

1 cent - $1 per group Ages 11 - 14 45 to 60 minutes
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This detailed lesson plan for a field trip to Canyonlands National Park in Utah (page 32 of pdf) teaches students about the habitat of bighorn sheep.

Over $20 per group Ages 11 - 14 1 to 7 days
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In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes
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In this activity, learners put on their naturalist hats and explore the world around them.


free Ages 8 - 14 2 to 4 hours