Using the State Curriculum: Science, Grade 5

Clarifications: Each clarification provides an explanation of an indicator/objective to help teachers better understand the skills and/or concepts.

Standard 2.0 Earth/Space Science

Topic A. Materials and Processes That Shape A Planet

Indicator 2. Cite and describe the processes that cause rapid or slow changes in Earth's surface.

Objective c. Cite examples that demonstrate how the natural agents of wind, water, and ice produce slow changes on the Earth's surface such as carving out deep canyons and building up sand dunes.

Clarification
Weathering and erosion by wind, water and ice are very slow processes which reshape the Earth's surface over millions of years. The Grand Canyon in the Southwest United States was carved by the action of moving water in the Colorado River. The Great Sand Dunes in Colorado were formed by the action of winds blowing sand from dry lake beds. The sand from these beds was originally part of the surrounding mountains that was eroded and deposited as sediment during flooding. Wind erosion and sand deposition interact continuously to change the size of the dunes. The slow movement of glaciers over thousands of years produced the mountains and deep valleys in Yosemite Park, California. The steep sides and rounded bottoms of the fjords along the coast of Norway were also carved out by the action of glaciers.
/instruction/clarification/science/grade5/xml/2A2c.xml

Clarification

Weathering and erosion by wind, water and ice are very slow processes which reshape the Earth's surface over millions of years. The Grand Canyon in the Southwest United States was carved by the action of moving water in the Colorado River. The Great Sand Dunes in Colorado were formed by the action of winds blowing sand from dry lake beds. The sand from these beds was originally part of the surrounding mountains that was eroded and deposited as sediment during flooding. Wind erosion and sand deposition interact continuously to change the size of the dunes. The slow movement of glaciers over thousands of years produced the mountains and deep valleys in Yosemite Park, California. The steep sides and rounded bottoms of the fjords along the coast of Norway were also carved out by the action of glaciers.

/instruction/clarification/science/grade5/xml/2A2c.xml

Resources for Objective 2.A.2.c:
CLARIFICATIONS | Public Release Items |

Site Map
About mdk12.org
Feedback