Lesson 1 Flashcards

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1
Q

The flowing of the upper __________ causes the Earth’s plates to move.

A

mantle

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2
Q

The Earth’s crust is thickest under the __________________________.

A

continental plates

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3
Q

The Earth’s crust is thinnest under the __________________.

A

ocean plates

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4
Q

What landforms are shaped by water?

A

valleys and canyons

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5
Q

What landforms are shaped by wind?

A

deserts and beaches

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6
Q

What is the flattest kind of landform without any hills or mountains?

A

plains

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7
Q

The tallest and most visible landforms are _______________.

A

mountains

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8
Q

Streams and rivers can cut small _____________ or gullies where they flow.

A

channels

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9
Q

Gust of wind can pile sand into large mounds called sand ________.

A

dunes

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10
Q

__________________ measures vibrations in the Earth.

A

Seismograph

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11
Q

What landform are formed when a river meets the ocean?

A

delta

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12
Q

The _________ is the top layer of the Earth.

A

crust

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13
Q

A large land mass surrounded by oceans or other land is called a _____________.

A

island

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14
Q

Valleys and canyons are examples of landforms shaped by _________.

A

water

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15
Q

The gentle sloping edge of a continent that connects the shore to the sea is called the ____________________.

A

continental slope

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16
Q

What Earth layer has a magnetic field?

A

outer core

17
Q

What Earth layer is made of solid metal?

A

inner core

18
Q

What type of boundary is an area where two tectonic plates are moving apart?

A

divergent

19
Q

What is solid rock caused to liquefy by extreme heat and pressure?

A

mantle

20
Q

What type of boundary is an area where two tectonic plates are colliding?

A

convergent

21
Q

The continents today were once joined in one huge continent called ____________.

A

Pangaea

22
Q

The continents drift only a few __________ a year.

A

inches

23
Q

Name the for Earth layers.

A

Inner core, Outer core, Mantle, Crust

24
Q

What Earth layer is solid rock?

A

Mantle

25
Q

What Earth layer creates the Earth’s magnetic field?

A

Outer core

26
Q

What two metals make up the inner core?

A

iron, nickel

27
Q

Name the super content that existed millions of years ago before the contents drifted apart.

A

Pangaea

28
Q

Name the region that is made up of the Earth’s crust and the solid part of the mantle above asthenosphere.

A

the lithosphere

29
Q

What force pulls everything towards the center of the Earth?

A

gravity