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By TED-Ed
Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end up with so much of this substance? And where did it...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
Just as air can have different densities, water can have different densities as well. As the salinity of water increases, the density increases as well. Fresh eggs will float in saltwater, but will sink in freshwater. This will show that as the salinity increases the density also increases.
Grade Level   4 5 6 7 8 9 10 11 12
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3
This is the first of three lessons thta have been developed to teach students about Earth's water cycle, the importance of freshwater resources, and how NASA studies water in Earth's systems.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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4
The ocean is the key element in Earth's hydrologic cycle (water cycle). Students will construct a simple model of the hydrologic cycle to help them visualize and understand the movement of liquid water and heat. The hydrologic cycle is the continual movement of water from one place to another and...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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5
"Water freezes at 32 degrees Fahrenheit (0 degrees Celsius). Adding salt to water lowers the freezing point. How low the freezing point goes depends upon the amount of salt in the water. The students will make homemade ice cream but the """"freezing times"""" will vary using different amounts of...
Grade Level   4 5 6 7 8 9 10 11 12
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6
The following educator resources center around ICPRB’s Watershed Connections Land Use Model, which enables students to explore various land uses and impacts on their watersheds. Model-building directions and educator resources can be found below. ICPRB also provides model building workshops for...
Grade Level   2 3 4 5 6 7 8 9 10 11 12
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"""""Model My Watershed"""" is a watershed-modeling Web app that enables students to analyze real land use and soil data in their neighborhoods and watersheds. Make science-based predictions of human impacts on stormwater runoff and water quality. "
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
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