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The way rocks are broken down into smaller bits and soil is called

The way rocks are broken down into smaller bits and soil is called. weathering. Name 3 things that cause weathering (wearing away) of the rock of the earth’s crust. Wind Water Plants. How does wind cause weathering?.

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The way rocks are broken down into smaller bits and soil is called

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  1. The way rocks are broken down into smaller bits and soil is called weathering Social Studies 3G Ch 2

  2. Name 3 things that cause weathering (wearing away) of the rock of the earth’s crust. Wind Water Plants Social Studies 3G Ch 2

  3. How does wind cause weathering? Wind picks up sand and blows it against rocks, causing them to wear away. Social Studies 3G Ch 2

  4. How does water cause weathering? • Water moving over rocks, wears them down or picks them up and bounces them around, causing them to break. • Water also freezes, expands and cracks the rock into smaller pieces. Social Studies 3G Ch 2

  5. How do plants cause weathering? When plant roots grow into cracks in rocks, they split the rock. Social Studies 3G Ch 2

  6. Which rock looks weathered the most? • The smoothest Social Studies 3G Ch 2

  7. The movement of soil or bits of rock by wind and water is called erosion Social Studies 3G Ch 2

  8. The slow erosion to land is caused by…. Wind Water Glaciers Gravity Social Studies 3G Ch 2

  9. How do water, ice, wind and gravity cause erosion. 1) Water washes away soil 2) Ice (glaciers) scrape up rocks and soil as they move downhill 3) Wind picks up small particles and moves them to a new spot 4) Gravity causes things to move downhill Social Studies 3G Ch 2

  10. How is a delta formed? Water moving downstream wears away rock into sediment, and deposits it at the end of the river. The sediment piles up into new land, called a delta. Delta’s are often the shape of a triangle. Social Studies 3G Ch 2

  11. What are glaciers? Huge sheets of ice that form in places that are frozen all year round. Continental glaciers are much bigger than valley glaciers. Social Studies 3G Ch 2

  12. How do glaciers change the land? • Gravity causes glaciers to move downhill about 1 foot a day, and cut into the land along the way. • They scrape up rocks and soil, and pile them up into hills. • They scoop out large holes that sometimes fill with water which become lakes. • They scoop out deep valleys Social Studies 3G Ch 2

  13. Name the layers of the Earth from inside, out. Inner core Outer core Mantle Crust Social Studies 3G Ch 2

  14. What is creep? Gravity causing the erosion of soil, by moving it slowly downhill. Creep causes roads to crack and fences to become crooked. Social Studies 3G Ch 2

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