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Showing results 21 to 28 of 28
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Finding the Carbon in Sugar
Source Institutions
In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-138.gif?itok=3JOn6FDM)
What-a-cycle
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-394.png?itok=s-UULeqY)
Low-Tech Water Filter for High-Impact Clean
Source Institutions
In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-115.jpg?itok=cm7dFhej)
Battling for Oxygen
Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-342.png?itok=FNB8h3s-)
The Wander of Pollen
Source Institutions
In this activity/demonstration, learners explore pollen and how insects and animals transport pollen. Learners investigate and compare wind and animal pollination.
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Colored Shadows
Source Institutions
In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.
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Global Climate Change and Sea Level Rise
Source Institutions
In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting.