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Published in 2017
A total solar eclipse happens somewhere on Earth once every year or two. What is an eclipse? Learn more about how solar eclipses happen, the four types of eclipses, and how to view the sun safely if you're within the path of totality.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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"From the thin air of Mount Everest to the intense pressure of the Challenger Deep, Earth is full of amazing extremes! Record-setting extremes are always being updated. Scientists and explorers discover new materials and refine their measuring methods, upsetting our ideas of """"biggest"""" or...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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3
Students compare miniature models to real things. Then they explore maps and globes as miniature versions of places on the Earth.
Grade Level   K 1 2 3
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4
"Crucial to our existence, water sustains all life on Earth. Following the old adage, """"""""What goes around comes around-"""""""" water moves continuously through the stages of the hydrologic cycle (evaporation, condensation, and precipitation). How does our drinking water fit into this...
Grade Level   K 1 2 3 4
Classroom Activities Curricula and Instruction
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