1
This manipulative by the National Weather Service has diagrams thatconnect the lunar phases to the tides.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
There are a variety of details in understanding tides. For elementary students, simply understanding what tides are and their frequency is appropriate (each day typically has two high tides and two low tides). Tying this to a model of gravity and the Moon’s motion and phases to understand tides...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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3
Ocean currents — the continuous, directed movement of ocean water — affect regional climates and alter the biological and chemical characteristics of seawater. Currents can flow for long distances both at and below the ocean’s surface. Wind drives surface currents, whereas density often drives...
Grade Level   6 7 8
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4
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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