chapter 2 terms and definitions part 1 Flashcards

1
Q

Solid and hot because it is under a lot of pressure.`

A

inner core

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2
Q

Liquid material that surrounds the inner core.

A

outre core

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3
Q

A liquid and semi liquid layer that exists between the outer core and crust the upper part is known as the asthenosphere, this section is involved in plate tectonics.

A

mantle

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4
Q

melted rock that makes up the mantel

A

magma

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5
Q

Melted rock that is exposed to the atmosphere

A

lava

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6
Q

A solid but brittle
outer layer of the planet

A

Crust (Lithosphere)

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7
Q

In 1915, German Geologist Alfred Wagner proposed that the Earth’s crust is not solid but made up of plates moving up the mantle. He examined the shape of the continents, rock structures, and recovered fossils to come up with his theory. He believed there was once a supercontinent called Pangea and a sea called Panthalassa

A

The Theory of
Continental Drift

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8
Q

The theory that the earth’s plates interact to produce mountains, trenches, earthquakes, and volcanoes.

A

plate tectonics

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9
Q

Area of the Atlantic Ocean where the seafloor is expanding.

A

Mid-Atlantic ridge

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10
Q

Area where one plate is pulled down beneath another creating volcanoes and earthquakes.

A

Subduction Zone.

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11
Q

The natural features of the land’s surface.

A

topography

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12
Q

Height above sea level

A

Elevation

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13
Q

The difference in elevation between points

A

Relief

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14
Q

The steepness of slopes

A

Gradient

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15
Q

Types of rocks and the history of them.

A

Geology

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16
Q

What do the features look like

A

General appearance.

17
Q

an areas landforms together with its cover of vegetation water, ice, and rock.
This includes all human features

18
Q

Occur When two crustal plates push together and the land bends due to the force of compression

A

Fold mountains

19
Q

Occur when moving magma separates, or compresses plates

A

Fault block mountains

20
Q

How landforms are created

A

mountain making

21
Q

the wearing down forces of the atmosphere.

A

weathering

22
Q

The moving of weathered material

23
Q

Where eroded materials are dropped create new forms

A

deposition

24
Q

Oldest rock in Canada
4 billion years old
Foundation for other landforms
Most of the shield has shallow acidic podzols
Support coniferous growth
Bad for farming
Covers most of central Canada

A

canadian shield

25
Formed around 375 million years ago when the Eurasian plate and the North American plate collided to form the super continent Pangea Mountains have been worn down by ice and water Typical height of the mountains is 1000m Covered mostly by mixed forest Found in most of Atlantic Canada
Appalachian mountains
26
Consists of a series of parallel mountain ranges Coast Mountains Columbia Mountains Rocky Mountains Many mountains over 3000m Many valleys with farming potential West facing slopes have great forests Found in British Columbia, Yukon, and Western Alberta
Western cordillera
27
Found in the far North Many over 2000m tall Steep sided Too cold for trees to grow
innuitian mountains
28
Area to the south of the Innuitian Mountains Mostly tundra Tundra: treeless plain Located mostly in Nunavut
arctic lowlands
29
Found between the Shield and Western Cordillera Created when a inland sea receded Made up of three prairie planes separated by two escarpments Steep slopes Fertile soil known as chernozem. Found in Alberta, Saskatchewan, Manitoba, and North West Territories
interior plains
30
Found to the south of the Canadian Shield Flooded by Champlain sea nearly 10000 years ago. As sea receded left a flat area of very fertile soil Soil known as brown earth Extends from South Western Ontario along the Great Lakes and through Quebec
Great Lakes St. Lawrence Lowlands
31
A low area of the shield with a build up of Paleozoic rock to a depth of 2000m Located in northern Ontario and Manitoba Flat and poorly drained Covered by swamps and trees
Hudson Bay Lowlands