Discover more about how changes in matter affect the physical features, atmospheres, and resources on Earth and other planets.

		Sharks and Rays: Myth and Reality Article for grades 6 through 12 Is it true that sharks must swim constantly or they will die? Do all rays have poisonous stingers? Can sharks detect a single drop of blood in the ocean? Learn to separate myth from reality.
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Discover more about how heat energy affects processes on Earth and in the universe.

		Rock Deformation Gallery Article for grades 9 through 12 If you hit a rock with a hammer, it will fracture and break. But with enough time and heat, rocks can flow like plastic. Learn more about ductility and the role it has played in shaping our planet.
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		Climate Change Graphics from the Hall of Planet Earth Exhibition Materials for grades 9 through 12 A year without a summer? Volcanic eruptions recorded in ice? Take a look at the world through the eyes of a geologist, and see the effects of climate changes.
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Discover more about electricity in the natural world.

Discover more about how forces and motion shape the universe.

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