Question

concept 3 - weathering erosion and deposition
starting on page 94

1. the three main surface processes are
2. is the chemical or breakdown of rock.
3. weathering occurs when water or acidic rain dissolves minerals in a rock causing it to wear down over time.
4. physical (or weathering) occurs when rocks are physically broken down into smaller particles or sediment.
5. types of movements of earth and the cause physical weathering. wind, , and cause rocks and particles to collide and break.
6. plant roots into rocks and break them apart.
7. water seeps into rocks and expands when it , causing rocks to or eventually break apart!
8. florid experiences physical and weathering.
9. list an example from page 95 that shows physical weathering in florida.
10. as acidic water breaks down and weakens the rocks, many caves and form around the state. this is why geologist sometimes describe the bedrock of florida as a block of \ \.

erosion and deposition page 96

1. involves the movement of rocks or sediment away from an area.
2. , , and gravity are the main causes of erosion.
3. how do rivers and streams create canyons?

Explanation:

1. The three main surface - processes in geology are weathering, erosion, and deposition.
2. Weathering is the chemical or physical breakdown of rock.
3. Chemical weathering occurs when water or acidic rain dissolves minerals in a rock.
4. Physical weathering (or mechanical weathering) is when rocks are physically broken down.
5. Tectonic movements and temperature changes cause physical weathering. Wind, water, and ice cause rocks and particles to collide and break.
6. Plant roots grow into rocks and break them apart.
7. Water seeps into rocks and expands when it freezes, causing rocks to crack or break.
8. Florida experiences physical and chemical weathering.
9. An example of physical weathering in Florida could be the breaking of rocks due to the expansion of water when it freezes in rock crevices.
10. As acidic water breaks down rocks, many caves and sinkholes form. Geologists sometimes describe Florida's bedrock as a block of "Swiss cheese".
11. Erosion involves the movement of rocks or sediment away from an area.
12. Water, wind, and gravity are the main causes of erosion.
13. Rivers and streams create canyons by continuously eroding the rock and sediment over a long period of time through the force of flowing water.

Answer:

1. Weathering, Erosion, Deposition
2. Weathering, Physical
3. Chemical
4. Weathering, Mechanical
5. Tectonic, Temperature changes, Water, Ice
6. Grow
7. Freezes, Crack
8. Chemical
9. Water - freezing in rock crevices breaking rocks
10. Sinkholes, Swiss cheese
11. Erosion
12. Water, Wind
13. By continuously eroding rock and sediment with flowing water over time.