EARTH HISTORY
The Deep Time Calendar
Place five major events on the calendar year. Dinosaurs end Dec 26. Where does human history land?
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Earth is 4.6 billion years old. Use the calendar, the cores, and the clocks to understand just how deep that time is.
PredictTestExplainReviseDefendTransfer0/5 evidence steps
Place an event on the calendar. 4.6 billion years compressed into one year. Where does your event land?
Quick place:
EVIDENCE WITNESS0 / 12
observation log
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