Grade Level: 3-5,
6-8,
9-12
Phytoplankton distribution background information.
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Explore the energy and matter cycles found within the Earth System.
Background information on deforestation.
Grade Level: 3-5,
6-8,
9-12
Earth is a system of systems.
We often take the Biosphere, especially its plants and trees, for granted; however, this important sphere also supports almost every aspect of our lives.
Grade Band
