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NOAA
A Matter of Density
Larvae transportation on the New England seamounts is based on the density of the water. Scholars calculate density and graph salinity versus temperature to better understand the distribution of organisms in a water column....
Curated OER
Revolutions in the Solar System
Third graders conduct research on the solar system. In this solar system lesson, 3rd graders will work in groups of four to create a power point presentation from their findings. They divide the research amongst the members in their...
Curated OER
How Many Bears in the Forest?
Third graders model the tag and recapture of bears and use proportions to estimate the population of the bears in their forest. This is a statistical sampling method used by scientists and naturalists to determine population numbers.