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Steve Murrie developed this huge (1 mm = 1 km) poster to illustrate the thickness of the Earth’s interior and atmosphere in an accurate representation. Students can easily see how thin the Earth’s crust is compared to the other layers, how little atmosphere we have to protect us from fast-moving objects moving through space, and how relatively small our biosphere is compared to the vastness of the universe. Includes instructions with activities. Size: 6.9m. Grades 6–10.
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