The earth’s landscape is always changing, but the changes happen so slowly that they are difficult to see. Forces such as heat and pressure change the landscape through weathering and erosion. It can take thousands of years for rocks to change shape through erosion, and millions for one rock type to transform into another.
This video satisfies the 2-ESS1-1 requirement for second grade proficiency.
Students who demonstrate understanding can:
ESS1.C: The History of Planet Earth
Some events happen very quickly; others occur very slowly, over a time period much longer than one can observe. (2-ESS1-1)
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