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This could be a great research tool for upper elementary students exploring earthquakes
The 1906 San Francisco earthquake is a good excuse to look at the distribution of quakes with our MapMaker Interactive layer. What patterns can you find?
http://on.natgeo.com/2oJwnoO
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Amazing

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To me the Time Line of Life is the epitome of cosmic education - it incorporates the concept of time, geology, geography and biology. It's one of my favourite materials 
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