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Grade Level: 6-8, 9-12

Explore using units in calculations with the Leaf Area Index (LAI). LAI is a ratio that describes the number of square meters of leaves per square meter of available land surface. Because of the units in the ratio, it is dimensionless.


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Grade Level: 6-8, 9-12

This lesson contains a card sort activity that challenges students to predict relative albedo values of common surfaces. 



Grade Level: 3-5

This mini-lesson guides students' observations of soil moisture anomalies (how much the moisture content was above or below the norm) for the continental US in May 2018.





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