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Showing results 641 to 660 of 788

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In this chemistry activity, learners use common chemicals to produce carbon dioxide and observe its properties. This resource includes brief questions for learners to answer after the experiment.

$1 - $5 per group Ages 11 - 18 5 to 10 minutes
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In this activity, learners investigate the properties of plastic bags. Learners find out what happens when they slowly push a pencil through a plastic bag filled with water.

1 cent - $1 per group Ages 4 - 11 10 to 30 minutes
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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 activity, learners build a Wilberforce Pendulum, a special coupled pendulum in which energy is transferred between two modes of vibration, longitudinal ("bounce') and torsional ("twist"), on a

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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In this activity, learners discover a trick to release the air out of a balloon without popping it.

1 cent - $1 per student Ages 8 - 18 Under 5 minutes
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In this simple activity (on page 2 of the PDF), learners make a crystal garden using salt, water, and a brick.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this activity, learners use a toaster to generate wind and compare the appliance's heat source to Jupiter's own hot interior. Learners discover that convection drives wind on Jupiter and on Earth.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this math lesson (page 2 of the PDF), learners use bottles of various shapes to explore the abstract concept of rate of change.

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners work in teams to investigate the composition of unseen materials using a variety of tools.

Over $20 per group Ages 8 - 14 30 to 45 minutes
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Conduct a simple experiment to explore how temperature changes can make things expand or contract.

1 cent - $1 per group Ages 6 - 14 Under 5 minutes
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In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners place cards featuring biological structures in order by their relative size from largest to smallest.

1 cent - $1 per group Ages 11 - 18 10 to 30 minutes
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In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases.

$5 - $10 per student Ages 11 - 18 45 to 60 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 activity, learners assemble large cubes to make nano-related images. Learners discover how different objects are related to nanoscience and nanotechnology.

$10 - $20 per group Ages 4 - adult 10 to 30 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 introduces learners to the structure and properties of carbon nanotubes.

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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In this physics activity, learners will investigate the strength of egg shells.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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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