weathering, erosion an deposition practice

What part of trees, grass, or other plant holds soil in place to prevent erosion?

• flowers
• trunk or stem
• roots
• leaves

Lichen secretes an acid that breaks down rock.

• Mechanical Weathering
• Chemical Weathering

_____________________ happens when rocks on Earth's surface break apart or change without moving anywhere.

• Erosion

• Weathering

• Deposition

_____________________ is the movement of soil and rock by wind, water, ice, and gravity.

• Weathering

• Erosion

• Deposition

Eroded materials are called _______________________.

• constructive

• chemical weathering

• sediments

_______________ moves material from one place to another.

• Weathering

• Erosion

• Deposition

This is an example of _____________________________.

• physical weathering

• chemical weathering

What is weathering?

• occurs when the eroded materials are dropped or laid down

• fragments of weathering rocks

• the process by which rock materials are broken down by the action of physical and chemical process

• the process by which wind, water, ice or gravity transport weathered materials from one location to another

In the pictures below, choose a picture that shows physical weathering of rock that has abrasion caused by wind.

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The dropping off and settling of sediments to the bottom of a lake or river is called

• erosion

• deposition

• weathering