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This printable supports Next Generation Science Standards Disciplinary Core Idea ESS1C and NGSS 2-ESS1-1.

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Earth Event Timescales (Grade 2)

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Earth Event Timescales

Some Earth events happen quickly. A quick event is one you see happening. It may happen over a few minutes, hours, or days. Some Earth events happen slowly. A slow event is one that you may not see happening. It may take place over many years.
1. 
The outer part of the Earth is split into pieces. These pieces are called plates. Plates move. Most of the time we do not feel the plates moving. Sometimes part of a plate moves and we feel the ground shake. This is an earthquake.
Tectonic Plates With Labels
Is an earthquake an Earth event that happens slowly or quickly?
  1. slowly
  2. quickly
2. 
A tornado is a storm. Its strong winds spin at fast speeds. A tornado can damage trees and buildings.

Is a tornado an Earth event that happens slowly or quickly?
  1. slowly
  2. quickly
3. 
A river can change the shape of the land. Sand and rocks get carried away by the water in the river. They are later placed down somewhere else. This can change the river's path over time.
Meandering River
Is this an Earth event that happens slowly or quickly?
  1. slowly
  2. quickly
4. 
Look at the volcano. It is erupting. Melted rock flows onto the ground. Gases are released into the air.
Volcano - Stratovolcano - Small
Is this an Earth event that happens slowly or quickly?
  1. slowly
  2. quickly
5. 
The rock shown forms in the Earth. It starts as magma. Magma is melted rock. The magma cools. When the magma fully cools, it becomes a hard rock.
Rock - Igneous - Granite
Is this an Earth event that happens slowly or quickly?
  1. slowly
  2. quickly

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