Science

Question 1

What is the order from the middle to the outside layer of Composition Layers?

Answer 1

1. Core
2. Mantle
3. Crust

Question 2

What is the order from the middle to the outside layer of Physical Layers?

Answer 2

Inner core, Outer core, Mesosphere, Asthenosphere, Lithosphere.

Question 3

What is the name for the supercontinent?

Answer 3

Pangaea.

Question 4

Who proposed the idea of Pangaea and Continental drift?

Answer 4

Alfred Wegener.

Question 5

What does Pangaea mean?

Answer 5

All earth; All land

Question 6

Which 2 continents are used as evidence for the continental puzzle?

Answer 6

South America and Africa.

Question 7

How long ago did Pangaea start separating?

Answer 7

About 200 million years ago.

Question 8

How can scientists tell that the plates are still moving?

Answer 8

Special tools, GPS.

Question 9

What are the three types of plate boundaries?

Answer 9

Divergent, Convergent, and Transform.

Question 10

What do moving plates form?

Answer 10

Plate tectonics form the oceans, continents, and mountains.

Question 11

What are the 5 pieces of evidence for continental drift?

Answer 11

Distribution of Glossopteris, distribution of mesosaurus, mountain formations, mountain rocks found on different continents, and how similar continents fit.

Question 12

What is the theory of continental drift?

Answer 12

That all continents were once formed together and created a supercontinent called Pangea over millions of years they had drifted apart creating seven continents.

Question 13

Why was this hypothesis rejected at first?

Answer 13

Alfred Wegener didn’t know what force caused Continental Drift.

Question 14

List the plate boundaries and describe how the plates move at each.

Answer 14

Divergent - plates move away from each other
Convergent - plates move towards each other
Transform - plates move past each other

Question 15

Are the plates still moving today?

Answer 15

Yes.

Question 16

What are the 5 physical layers in Earth?

Answer 16

Inner core, Outer core, Mesosphere, Asthenosphere, Lithosphere.

Question 17

What are the 3 composition layers in Earth?

Answer 17

Core, Mantle, Crust.

Question 18

What does Divergent mean?

Answer 18

To move away from.

Question 19

What does Convergent mean?

Answer 19

To move towards.

Question 20

What does Transform mean?

Answer 20

To move past horizontally.

Question 21

What does the Divergent moving process cause?

Answer 21

Sea-floor spreading, Mid-Ocean ridge Rift valleys, Earthquakes, and volcanic activity.

Question 22

What does the Convergent moving process cause?

Answer 22

Deep sea trenches, Volcanos, and Mountains.

Question 23

What does the Convergent moving process cause?

Answer 23

Earthquake activity.

Question 24

What is Subduction? Where do they occur?

Answer 24

It’s when a denser crust sinks beneath a less dense crust, and back into the Mantle. This occurs at convergent plate boundaries.

Question 25

What is Ridge push?

Answer 25

Ridge occurs when the weight of an elevated Ridge pushes an oceanic plate toward a subduction zone.

Question 26

What is a slab pull?

Answer 26

Slab pull occurs when the weight of the subducting plate pulls the trailing lithosphere onto a subduction zone.