Understanding Geologic Time
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Students view Understanding Geologic Time on the Internet or by CD-Rom to explore the length of time that the Earth has existed.
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Four Ways to Understand the Earth's Age
Cartoon children compare the earth's age to timescales that we understand:a calendar year, the thickness of a book, the human lifespan. This smart film clip is definitely worth adding to your geologic timescale lesson! If you subscribe...
4 mins 6th - 12th Science CCSS: Adaptable