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features collections of dozens of animations for teaching geoscience topics -- atmosphere, biosphere, climate, earth's surface, energy and material cycles, geology, human dimensions, hydrosphere and cryosphere, hydrology, ocean, solar system, solid earth, earth history, and more. Learn what makes an effective visualization and best practices for using visualizations in the classroom. (Carleton College, National Science Foundation)
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While many beach-goers are concerned about the possibility of shark attacks, rip tides or rip currents are more dangerous to people who vacation at the shore. Areas along beaches that are most susceptible to these powerful currents include piers, jettys and especially, sand bars. |
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Lena Delta, Siberia. |
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