Earth's+Forces

3.6 **Science concepts**. The student knows that forces cause change. The student is expected to: (B) Identify that the surface of the Earth can be changed by forces such as earthquakes and glaciers.

ARRC INFO: Including identify and define: · Weathering §  P rocesses that break rock into smaller pieces §  Agents include water movement (waves and rivers) and cycles of freezing and thawing, plants (forces from roots of plants that grow into cracks), wind – as erosion moves sand with the wind, the agent of erosion can become an agent of weathering by sand blasting rocks, glaciers – as glaciers move sediments by erosion, they can grind against the earth's surface and create more sediments (soil, sand, pebbles) · Erosion §  Processes that move sediments formed by weathering §  Agents include wind, waves, flowing water, glaciers, and gravity (creep – slow; landslides – fast) Including identify, describe, and model changes to the Earth: ·  Earth's surface is constantly changing §  Changes can be rapid ¨  Earthquake ¨  Tsunami ¨  Volcano ¨  Floods §  Changes can be slow ¨ Erosion moves sediments by the forces of wind, water, waves, glaciers, and gravity ¨  Glaciers carve valleys and lakebeds. ¨  Glaciers deposit rocks to form hills. <span style="font-family: Symbol; font-size: 10pt; mso-bidi-font-family: Symbol; mso-bidi-font-size: 8.0pt; mso-fareast-font-family: Symbol; msobidifontfamily: Symbol; msobidifontsize: 8.0pt; msofareastfontfamily: Symbol; msolist: Ignore;">·  Changes in the earth's surface affect ecosystems and the organisms living there <span style="font-family: Symbol; font-size: 10pt; mso-bidi-font-family: Symbol; mso-bidi-font-size: 8.0pt; mso-fareast-font-family: Symbol; msobidifontfamily: Symbol; msobidifontsize: 8.0pt; msofareastfontfamily: Symbol; msolist: Ignore;">·  Changes in the earth's surface result in landforms <span style="font-family: 'Courier New'; font-size: 10pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Courier New'; msobidifontsize: 12.0pt; msofareastfontfamily: 'Courier New'; msolist: Ignore;">o  Landforms identified in Social Studies Resources: Review from 2nd Grade: gulf, hill, island, lake, mountain, ocean, peninsula, plain, river, valley New to 3rd Grade: range, plateau, volcano, riverbank, desert, coast, bay channel, canyon, coastal plain
 * Teacher Notes: **

Earth's Forces 5-E