21
Water is the most abundant and important substance on Earth. It is essential to life and is a major component of all living things. There are approximately 336,000,000,000,000,000,000 gallons of water on Earth, existing in three states: solid, liquid, and gas. The sources for this water storage are...
Grade Level   6 7 8 9 10 11 12
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22
In this Watershed Sleuth Challenge, you will learn more about your watershed - what it is, why its important, and what you can do to protect it, as you earn badges at each level of this three-part course.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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23
"Water that accumulates beneath the surface of the Earth is called groundwater. Contrary to popular belief, groundwater does not form underground """"rivers,"""" but is actually found in the small spaces and cracks between rocks and other material such as sand and gravel. Groundwater supplies about...
Grade Level   4 5 6 7 8 9
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24
"New Englanders have a saying: """"If you don't like the weather, just wait a minute."""" Weather forecasts may be more stable in other parts of the world, but the basic idea stands. weather is dynamic, the product of interacting forces we are only beginning to understand. This interactive teaches...
Grade Level   5 6 7 8 9 10 11 12
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25
There is water all over Earth in different forms. By far, most of the planet's water is in the oceans, but it is in other places as well. Sometimes water is a liquid, sometimes it is a solid, and sometimes it is a gas. These changes in the states of matter are the result of the water either gaining...
Grade Level   5 6
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26
Water in its liquid state is visible, as ponds, streams, water in bottles, and wet surfaces. You can also see water in its solid form , ice and snow. Water as a gas in the air, also called water vapor, is invisible. The process of visible liquid water turning into invisible gaseous water is called...
Grade Level   5 6
Classroom Activities Curricula and Instruction
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27
You will create a model of a watershed with paper. By observing how surface water flow is determined by the shape of the land, you will visually and dramatically observe the physical characteristics of a watershed, and investigate the impacts of human land use decisions.
Grade Level   6 7 8
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28
Published in 2016
A watershed is the area of land that water flows over to reach a river, lake, or a stream. Near the upslope edges of a watershed, small tributary streams (1st, 2nd and 3rd order) begin gathering water that flows downstream into larger rivers and eventually drains into a river, bay, or ocean. Some of...
Grade Level   6 7 8
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29
Published in 2016
Many things contribute to a healthy watershed. Certain land cover types like farm fields, cow pastures, sewage treatment plants and landfills are sources of nutrient and sediment pollution to streams. Rain falling on hot parking lots and rooftops in the summer delivers warm runoff water to streams....
Grade Level   6 7 8
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30
The students will set up three demonstrations to observe the properties of water. They will explore the boiling point of water, the freezing point of water, and the ability of water to store heat. These activities can be done individually or as a set. About 71% of the Earth's surface is covered with...
Grade Level   6 7 8 9 10 11 12
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31
What is sea ice? It is simply frozen ocean water. Why is sea ice important? While it occurs mainly in polar regions, sea ice influences our global climate. Changing amounts of sea ice can affect ocean circulations, weather patterns, and temperatures around the world. Sea ice insulates the relatively...
Grade Level   6 7 8 9 10
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