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Grades 4–5
The Nitrogen Cycle
science · RI.4.4+1
$1.50
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“nitrogen fixation” worksheets and activities
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Grades 5–8
Nitrogen Cycle
life science · MS-LS2-3
$1.50
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Grade 6
Archaea
life science
$1.50
Passage
Grades 5–8
Bacteria
life science · MS-LS4-2+1
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