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Flashcards in Science Unit Quiz Deck (23):
1

What causes plate tectonic movement.

Because convection occurs in the earth's outer core that pushes against the plates making them move.

2

What different types of evidence are used to support sea floor spreading and continental drift theory.

Continental drift: The continents fit like a puzzle, fossil records, mountain ranges, rock types and glacial deposits

Sea floor spreading: Trenches, disappearing crust, subduction zones, magnetic field and the age of the oceanic crust.

3

Who created the continental drift theory.

Alfred Wegener

4

What are the three different plate boundaries.

Convergent, divergent and transform

5

What is the theory of plate tectonics.

The theory is that the outer rigid layer of earth that is divide into twelve plates that move around across the earth's surface.

6

What are folds

It's a bend in the layers of rock caused by underground movements in the earth

7

What is continental drift theory.

It is a theory that all the continents used to be formed in one giant landmass.

7

What is fracture.

It is when a rock or mountain separates into two or more pieces

8

What is fault

It is a crack in the earth's crust

9

What are the two types of fold

Anticline and syncline

10

What are the three types of faults

Normal, reverse and strike slip

11

What causes earthquakes

Plate tectonic interaction, faulting, pressure and stress

12

Where do most earthquakes occur

80% occur around the earth's pacific plate.

13

How do we measure earthquakes

Richter Scale and the Mericalli Scale

14

What are the two main types of waves

There are p-waves and there are s-waves, the s-waves are slower than the p-waves.

15

What are the main parts of an earthquake

Epicenter, focus and fault

16

What creates volcanoes.

Convergent and divergent plate boundaries.

17

What are the main parts of a volcano

Magma chamber, conduit, vent caldera, ash cloud.

18

What are the three main types of volcanos

Shield, cinder and composite

19

What are the three main types of mountains

Fold, fault-block and dome

20

What is the word to describe mountain formation.

Orogenesis

21

What is the tallest peek in Maine

Mt. Katahdin

24

Name the mountain ranges in the United States

Appalachians (fold mountains), Rockies (fold mountains), Tetons (fault-block mountains), Sierra Nevada (fault-block mountains), Black Hills and Adirondacks ( dome mountains)