Earth Science Ch. 7 - Weathering, Erosion, & Deposition

Which is usually the primary factor that affects the rate of chemical weathering?

• climate
• living things
• volume
• volume and living things

Which of the following is NOT a type of chemical weathering?

• water
• carbon dioxide
• ice wedging
• living organisms secreting acid to break down rocks

What is weathering?

• The process by which
  water, ice, wind or gravity
  moves fragments of rock
  and soil.
• The process by which
  water, ice, wind or gravity
  deposit rock sediments
  and soil in a new place.
• The breaking down of
  Earth’s crust into smaller
  and smaller pieces.

What is erosion?

• The process by which
  water, ice, wind or gravity
  moves fragments of rock
  and soil.
• The process by which
  water, ice, wind or gravity
  deposit rock sediments
  and soil in a new place.
• The breaking down of
  Earth’s crust into smaller
  and smaller pieces.

What is deposition?

• The process by which
  water, ice, wind or gravity
  moves fragments of rock
  and soil.
• The process by which
  water, ice, wind or gravity
  deposit rock sediments
  and soil in a new place.
• The breaking down of
  Earth’s crust into smaller
  and smaller pieces.

Which of the following is NOT a type of mechanical weathering?

• burrowing plants

• ice wedging

• plant roots

• acid rain

What is mechanical weathering?

• The process that breaks down rock

  through dissolving rock and chemical

  changes.

• Process by which rocks are broken down

  into smaller pieces.

What is chemical weathering?

• The process that breaks down rock
  through dissolving rock and chemical
  changes.
• Process by which rocks are broken down
  into smaller pieces.

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

Wind blowing sand from one location to another is an example of:

• Weathering
• Erosion
• Deposition