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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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Students use the Tides Online web page to answer questions on this student worksheet.
Grade Level   6 7 8 9 10 11 12
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3
There are three states of matter: gas, liquid, and solid. Water in our atmosphere exists in these three states constantly. As the temperature of water vapor (a gas) decreases, it will reach the point at which it turns into a liquid (called the dew point or the point at which dew forms). This change...
Grade Level   3 4 5 6 7 8 9 10 11 12
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4
There are two methods water moves from the ground to the atmosphere as part of the hydrologic cycle. Transpiration is basically evaporation of water from plant leaves. Studies have revealed that transpiration accounts for about 10% of the moisture in the atmosphere, with oceans, seas, and other...
Grade Level   5 6 7 8 9 10 11 12
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5
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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6
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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7
Students can study the air currents within their classroom to examine how wind and ocean currents distribute particles through different environments.
Grade Level   2 3 4 5 6 7 8 9 10 11 12
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World Ocean Observatory is the leading organization advocating for the health and sustainability of the ocean through an accessible worldwide network of communication. Through education, partnership, information exchange, public connection, and relentless communications, W2O is committed to building...
Grade Level   5 6 7 8 9 10 11 12
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9
In this activity, students will make a “human size” graph of tides on a classroom wall to understand variability of tides at different locations. Students will investigate different reserves in the National Estuarine Research Reserve System to examine how tides vary throughout the day and from...
Grade Level   6 7 8 9 10 11 12
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10
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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11
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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12
"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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