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Skill Building > 4/4 - Science Quiz > Flashcards

4/4 - Science Quiz Flashcards

1
Q

Name the 4 main layers of the Earth.

A
  • Inner Core
  • Outer Core
  • Mantel
  • Crust
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2
Q

What are the two main elements in the Earth’s inner and outer core?

A
  • Iron
  • Nickel
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3
Q

Which part of the Earth’s layers make the tectonic plates?

A

The crust and the upper mantle

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4
Q

What is the name for this combination of rock that makes up the tectonic plates?

A

Lithosphere

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5
Q

How much do the tectonic plates move each year?

A

1.5 centimeters

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6
Q

What causes tectonic plates to move?

A

Convection currents in the mantle

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7
Q

What part of the mantle causes the tectonic plates to move?

A

Asthenosphere

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8
Q

What causes the magma in the lithosphere to move?

A

Convection currents

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9
Q

What are the 3 main types of plate boundaries?

A
  • Divergent
  • Convergent
  • Transform
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10
Q

How do Divergent boundaries move?

A

The plates move away from each other

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11
Q

How do Convergent boundaries move?

A

The plates move towards each other

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12
Q

How do Transform boundaries move?

A

The plates slide past each other

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13
Q

What are the 2 types of crust?

A
  • Oceanic
  • Continental
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14
Q

Which type of crust is denser? Oceanic or Continental?

A

Oceanic

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15
Q

What is oceanic crust made of?

A

Basalt rock

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16
Q

What is subduction?

A

When one tectonic plate slides under another

17
Q

If an oceanic plate and continental plate collide what happens?

A

The oceanic plate will slide under because it is denser

18
Q

What tectonic plate do we live on?

A

North American Plate

19
Q

What natural disasters can happen at a plate boundary?

A

Earthquakes and volcanos

20
Q

What landforms can be found at plate boundaries?

A
  • Mountains
  • Trenches
  • Ridge
21
Q

Tonga volcano

A
  • In the South Pacific Ocean.
  • Caused a tsunami.
  • Air quality was affected.
22
Q

San Francisco earthquake

A
  • In California
  • San Andreas Fault
  • On the edge of the Pacific and North American Plates
23
Q

What type of boundary formed the Mid-Atlantic Ridge?

A

Divergent boundary

24
Q

What type of boundary formed the Himalayas?

A

Convergent boundary

25
Q

What is the Ring of Fire in the Pacific Ocean?

A

Many volcanos and earthquake activities on the edge of the Pacific Ocean

26
Q

How old is the Earth?

A

About 4.5 billion years old

27
Q

What are the 3 types of rocks?

A
  • Igneous
  • Sedimentary
  • Metamorphic
28
Q

How are igneous rocks made?

A

Cooling of magma or lava

29
Q

How are sedimentary rocks made?

A

Layers of sediment are pressed together over time with a lot of pressure

30
Q

How are metamorphic rocks made?

A

Preexisting rock is altered through heat and pressure

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