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atmosphere 1 earth 1 k-5 geosource 1 space spanish 1
"A new site """"The Earth, the Great Imam"""" on the evolution of the geomagnetism science that deals with the earth's magnetic field, commemorating the 400 anniversary of the publication of William Gilbert's De Magnete, physician of Queen Elizabeth I of England, who Was the first to explain the...
Grade Level   9 10 11 12
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