Geologic Time Scale (Alpha)

This app has tons of info as well as a trivia quiz that will test your new found knowledge.

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Geological Time Scale

It’s so intriguing to me that we can tell how old something is just by examining the color. This app shows what I’m talking about on a much more scientific level.

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Geologic Periods

This app gives you all of the past geologic periods along with their scientific name and a link to a website with more info on it.

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