Weathering and erosion

What often happens to rocks that undergo chemical weathering?

• They form crystals.  

• They produce acids.

• They become stronger.

• They crumble more easily.

What happens to a rock when it is weathered?

• It is broken into smaller pieces.

• It is moved by wind, air, or water.

• It is built up as material is deposited.

• It is changed into another type of rock.

_____________ weathering is the breaking down of rocks by chemical reactions.

• Chemical

• Physical

• Deposition

• Erosion

____________ is the breaking down and wearing a way of rock by mechanical action.

• Erosion

• Oxidation

• Iron Oxide

• Abrasion

Wind, water and gravity are NOT examples of which type of weathering?

• Chemical

• Mechanical

• Physical

• Both B and C

the BREAKDOWN of rock into smaller pieces of the same rock without any change in its composition

• mechanical weathering
• chemical weathering
• erosion
• deposition

the process in which sediment particles are picked up and MOVED from one place to another

• mechanical weathering
• chemical weathering
• erosion
• deposition

Roots grow into cracks of a rock and pry them apart

• mechanical weathering
• chemical weathering
• erosion
• deposition

rock is broken by the freezing and thawing of ice

• chemical weathering
• mechanical weathering
• erosion
• deposition

rock particles wear away rock

• mechanical weathering
• chemical weathering
• erosion
• deposition