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FBMS science > Earth's Interior > Flashcards

Earth's Interior Flashcards

1
Q

What is the Earth’s hard surface made of?

A

granite

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2
Q

Does the Earth look the same today as it did millions of years ago?

A

no

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3
Q

What is the study of the Earth called?

A

Geology

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4
Q

What is the difference between constructive ad destructive forces?

A

Constructive forces build up

destructive forces destroy the Earth

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5
Q

The Earth’s interior is divided into crust, mantle and core based upon what?

A

structure

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6
Q

what makes up most of the Earth’s crust?

A

basalt

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7
Q

What layer is directly below the crust?

A

mantle

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8
Q

two examples of constructive forces

A

mountains, rivers

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9
Q

two examples of destructive forces

A

volcanoes, earthquakes

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10
Q

what is xenolith

A

piece of rock with igneous

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11
Q

what is the deepest hole that humans have dug?

A

kola borhole

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12
Q

what is the deepest cave that humans have explored

A

krubera

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13
Q

how are seismic waves produced

A

.

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14
Q

how do seismic waves help geologists learn about the Earth?

A

.

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15
Q

name the 3 main layers of the Earth

A

crust, mantle, and core

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16
Q

name the layers of the Earth starting at the outside

A

oceanic crust

mantle
outer core
inner core

17
Q

name five ways the layers of Earth differ

A

1.what they are made of
2.what is in it
3.
4.
5.

18
Q

what happens to temperature, pressure and density as you travel deeper into the Earth

A

They increase

19
Q

Why is the core hot?

A

.

20
Q

What are two types of crust?

A

oceanic and continental

21
Q

continental crust is made of what?

A

granite

22
Q

what is oceanic crust made of?

A

basalt

23
Q

How can you tell the different between granite and basalt?

A

.

24
Q

What is the Earths largest layer?

A

mantle

25
Q

What are the 3 parts that the mantle can be broken into?

A

lithosphere
mesosphere
asthenosphere

26
Q

How thick is the lithosphere

A

0-100 km

27
Q

What is the difference in material of the asthenosphere and the lithosphere

A

asthenosphere is hotter and under more pressure

lithosphere is cooler and more rigid (breakable)

28
Q

Why do scientist consider the core two parts?

A

part is solid and part is liquid

29
Q

Why is the inner core solid when it is hotter than the outer core?

A

.

30
Q

How is the Earth’s magnetic field produced?

A

.

31
Q

The Earth was once all melted material. Why did it separate into layers?

A

magnetic field

32
Q

Compare Earth’s layer to a hard boiled egg

A

shell-crust
whites mantle
yolk-core

FBMS science (5 decks)

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