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Grades 6–8
How Humans Disrupt Earth's Cycles
earth and space science · MS-ESS2-1
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“synthetic fertilizers” worksheets and activities
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Grades 4–6
How Agriculture Affects Earth
life science · 5-ESS3-1
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Grades 5–8
Nitrogen Cycle
life science · MS-LS2-3
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Grades 6–8
Classifying Matter & Materials — Foldable Triangle Organizers
science · NGSS MS-PS1: MATTER AND ITS INTERACTIONS (MS-PS1-1
$2.99
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Grades 5–8
Phosphorus Cycle
life science · MS-LS2-3
$1.50
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Grades 6–8
How Land Pollution Reaches Rivers, Lakes, and Oceans
earth and space science · MS-ESS3-3
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Passage
Grades 6–8
How Do Humans Degrade and Pollute Soil
earth and space science · MS-ESS3-3
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Grades 4–5
The Nitrogen Cycle
science · RI.4.4
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Passage
Grades 6–8
What Makes Something a Mineral
earth and space science · MS-ESS3-1
$1.50
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Grades 3–8
What are the uses of Evaporative Salts
physical science
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Grades 5–8
Cross-Pollination
life science · MS-LS3-1
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Grades 5–8
Self-Pollination
life science · MS-LS3-1
Free
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