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Helpful Science Links
(National Aeronautics and Space Administration)
(National Science Teachers Association)
(American Association for the Advancement of Science creators of the national science standards)
(US Geological Survey)
(Environmental Protection Agency)
(this stands for National Science Digital Library)
(World Wildlife Fund)
(National Oceanic and Atmospheric Administration)
(A guide to simple machines used in cars)

Saturday, September 19, 2020   |  District Home