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Questions and Answers
What is the process called when rock material is broken down into smaller pieces?
What is the process called when rock material is broken down into smaller pieces?
What type of weathering involves the breakdown of rocks due to physical changes?
What type of weathering involves the breakdown of rocks due to physical changes?
What is the term for the breakdown of rocks by the action of other rocks using wind, water, or gravity?
What is the term for the breakdown of rocks by the action of other rocks using wind, water, or gravity?
How do changes in temperature contribute to physical weathering?
How do changes in temperature contribute to physical weathering?
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How do plants contribute to physical weathering?
How do plants contribute to physical weathering?
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What is an example of animal action that contributes to physical weathering?
What is an example of animal action that contributes to physical weathering?
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What is the primary reason why rocks formed under pressure deep within Earth crack at the surface?
What is the primary reason why rocks formed under pressure deep within Earth crack at the surface?
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Which of the following is NOT a type of abrasion?
Which of the following is NOT a type of abrasion?
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What happens to a rock when it is subjected to repeated temperature changes?
What happens to a rock when it is subjected to repeated temperature changes?
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What is the role of animal action in physical weathering?
What is the role of animal action in physical weathering?
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How do plant roots contribute to physical weathering?
How do plant roots contribute to physical weathering?
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What is the common factor among wind, water, and gravity in physical weathering?
What is the common factor among wind, water, and gravity in physical weathering?
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Study Notes
Weathering
- Weathering is the breakdown of rock material by physical and chemical processes.
- There are two types of weathering: physical weathering and chemical weathering.
Physical Weathering
- Physical weathering is the process by which rock is broken down into smaller pieces by physical changes.
- Types of physical weathering:
- Temperature change
- Pressure change
- Animal action
- Wind, water, and gravity
- Plant growth
Temperature Change
- Changes in temperature can cause a rock to break apart.
- Rise in temperature causes a rock to expand.
- Decrease in temperature causes a rock to contract.
- Repeated temperature changes can weaken the structure of a rock, causing it to crumble.
Pressure Change
- Rocks formed under pressure deep within the Earth can become exposed at the surface, causing the rocks to crack.
Animal Action
- Many animals dig burrows into the ground, allowing rocks to be exposed at the surface, and starting the weathering process.
Plant Growth
- Roots of plants can crack rocks.
- As the plant grows, its roots grow, and the rocks can break apart.
Wind, Water, and Gravity
- Abrasion is the breaking down of rocks by the action of other rocks using wind, water, or gravity.
- Types of abrasion:
- Gravity abrasion
- Abrasion by water
- Abrasion by wind
Weathering
- Weathering is the breakdown of rock material by physical and chemical processes.
- There are two types of weathering: physical weathering and chemical weathering.
Physical Weathering
- Physical weathering is the process by which rock is broken down into smaller pieces by physical changes.
- Types of physical weathering:
- Temperature change
- Pressure change
- Animal action
- Wind, water, and gravity
- Plant growth
Temperature Change
- Changes in temperature can cause a rock to break apart.
- Rise in temperature causes a rock to expand.
- Decrease in temperature causes a rock to contract.
- Repeated temperature changes can weaken the structure of a rock, causing it to crumble.
Pressure Change
- Rocks formed under pressure deep within the Earth can become exposed at the surface, causing the rocks to crack.
Animal Action
- Many animals dig burrows into the ground, allowing rocks to be exposed at the surface, and starting the weathering process.
Plant Growth
- Roots of plants can crack rocks.
- As the plant grows, its roots grow, and the rocks can break apart.
Wind, Water, and Gravity
- Abrasion is the breaking down of rocks by the action of other rocks using wind, water, or gravity.
- Types of abrasion:
- Gravity abrasion
- Abrasion by water
- Abrasion by wind
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Description
Learn about the breakdown of rock material through physical weathering, including temperature change, pressure change, animal action, and wind and water effects.
