Science - Unit C Chapter 1
Terms
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- The layer of gases that surround the earth
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A. atmosphere
B. lithosphere
C. hydroshpere - The land part of the earth
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A. atmosphere
B. lithosphere
C. hydroshpere - The water part of the earth
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A. atmosphere
B. lithosphere
C. hydroshpere - Name the main gases that make up the earth's atmosphere.
- nitrogen, oxygen, carbon dioxide, and water vapor
- How much of the earth surface is covered by water?
- 3/4
- What are mountains part of, lithosphere or hydrosphere?
- lithosphere
- What are the 3 layers of the earth called?
- The crust, mantle and core
- What is the coolest layer of the earth?
- The crust
- Where is the crust thinner?
- Under the oceans
- Where is the crust thicker?
- Under the continents
- Where and what is the mantle?
- It is a partly melted rock layer below the crust
- What is the core made of?
- Iron and nickel
- What is the hottest layer of the earth?
- The core
- A theory stating that the earth's surface is broken into places that move
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A. plate tectonics
B. atmosphere
C. lithosphere
D. hydroshpere - The continents were probably once all attached and drifted apart, true or false?
- True
- Why do believe that the continents were once attached?
- Because they all seem to fit together like a jigsaw puzzle.
- What other evidence (proof) is there that the continents were once attached?
- Fossils that exist that show that animals have been found on different continents
- What 3 event caused plate movement?
- Earthquakes, volcanos, and mountains
- The process that breaks down and changes rock
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A. weathering
B. erosion
C. deposition - The moving of weathered rock and soil
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A. weathering
B. erosion
C. deposition - The dropping of materials moved by erosion
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A. weathering
B. erosion
C. deposition - What causes the weathering of rock when the water insides the cracks in the rock freeze, causing the crack to enlarge?
- Freezing, because the crack becomes so large that part of the rock crumbles away
- What is the main cause of erosion?
- Flowing water
- What also causes erosion besides flowing water?
- wind and ice
- Why do rivers get muddy?
- Because they are carrying away large amounts of weathered soil and small rocks?
- How does erosion affect farmland?
- It takes away soil making land less suitable for farming.
- What are some landforms that are built by deposition?
- Deltas, sand dunes, beaches, and sand bars
- The way that rocks change from one form to another
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A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock - Rock formed from melted rock that comes from deep within the earth
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A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock - Rock formed when sediments are pressed together
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A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock - Rock formed when igneous or sedimentary rock is changed by heat or pressure
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A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock - What scale measures mineral hardness?
- Mohs Scale
- What is beneath newer rock layers?
- Older rock layers
- How are fossils formed?
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1.A dead organism sinks to the bottom of the ocean
2.Sediments cover an organism on a dead organism
3.Layers of sediment press down on a dead organism
4.A dead organism becomes a fossil in a layer of rock -
Science
Unit C - Chapter 1 -
Science
Unit C - Chapter 1