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Showing results 981 to 1000 of 1179

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In this forensics activity, students will explore the methods that investigators use to confirm the authenticity of handwriting.

$1 - $5 per group 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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In this demonstration, learners attempt to get a large coin through a small hole, the size of a smaller coin.

1 cent - $1 per student Ages 8 - adult 5 to 10 minutes
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Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

1 cent - $1 per student Ages 11 - 14 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Lift Off) is a full inquiry investigation into the engineering challenges of sending scientific sensors into space.

Over $20 per group Ages 8 - 14 1 to 7 days
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In this activity, learners investigate carbon sequestration by creating a carbonated beverage out of apple juice and dry ice.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes
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This is a quick activity (on page 2 of the PDF under Hockey Sticks Activity) about how the arrangement of carbon atoms determines carbon's different properties.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this math lesson, learners explore the real world meaning of slope. Learners conduct a balloon experiment in which they measure the circumference and flight time of deflating balloons.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners gain a better understanding of how household/school waste breaks down in a landfill. Learners collect trash and then create miniature landfills in 2-liter bottles.

1 cent - $1 per student Ages 4 - 14 1 to 4 weeks
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In this demonstration, learners observe as two cola bottles and a dollar bill are arranged in a specific order: one bottle, upside down and filled with water, is placed on top of another bottle, with

free Ages 8 - 18 Under 5 minutes
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In this activity, learners turn an ordinary metal coat-hanger into a (very quiet) musical instrument.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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In this activity, learners compare different types of salt crystals under a magnifying glass.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners estimate how much water they think can be found in various locations on the Earth in all its states (solid, liquid, and gas) to discover the different water ratios in the Ea

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners create music from a series of bottles filed with water. Learners discover that the sound produced by each bottle depends on the amount of water in the bottle.

free Ages 4 - 11 10 to 30 minutes
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Learners explore their surroundings while reasoning about categories and counting.

free Ages 4 - 14 5 to 10 minutes
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In this activity, learners investigate the impact of oil pollution on the environment and wildlife. Learners use hard-boiled eggs and feathers to understand the damage that oil spills can cause.

$5 - $10 per group Ages 8 - 11 1 to 7 days
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In this activity (located in the middle of the page), learners start a garden by planting their socks!

1 cent - $1 per student Ages 4 - 11 1 to 4 weeks
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This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people who d

$1 - $5 per group Ages 8 - 18 30 to 45 minutes
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In this activity about flight, learners explore how high they can jump. Learners dip their finger in ink or dirt, then jump as high as they can and mark paper attached to the wall.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes