2nd Grade (SCI) Science Standards [ESS1] Earth's Place in the Universe
SCI-02.ESS1.01 Use information from several sources to provide evidence that Earth
events can occur quickly or slowly.
Clarification Statement: Examples of events and timescales could include volcanic explosions and earthquakes, which happen
quickly and erosion of rocks, which occurs slowly. Disciplinary Core Ideas 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.