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35 Cards in this Set

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  • Back
The layer of gases that surround the earth
A. atmosphere
B. lithosphere
C. hydroshpere
The land part of the earth
A. atmosphere
B. lithosphere
C. hydroshpere
The water part of the earth
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
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
A. weathering
B. erosion
C. deposition
The moving of weathered rock and soil
A. weathering
B. erosion
C. deposition
The dropping of materials moved by erosion
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
A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock
Rock formed from melted rock that comes from deep within the earth
A. rock cycle
B. igneous rock
C. sedimentary rock
D. metamorphic rock
Rock formed when sediments are pressed together
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
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?
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