Unit 3: Earth's Chaning Surface Part 3

Front 1

magnitude of earthquake is measured by the HINT

Back 1

Richter scale

Hint 1

HINT: Mr. Hoffman's first name is Richard.

Front 2

The point in Earth's interior where the energy release of an earthquake occurs is the __. HINT

Back 2

foucus

Hint 2

Front 3

The point in Earth's surface ABOVE where the energy release of an earthquake occurs is the __. HINT

Back 3

epicenter

Hint 3

Front 4

What are two names for a break in Earth's lithosphere where one block of rock moves toward, away from, or past another. HINT

Back 4

boundary, fault

Hint 4

HINT: blame game

Front 5

Tectonic plates move because of... HINT: hot goes up, cool goes down, in a round and round direction HINT

Back 5

convection currents in the mantle(asthenosphere)

Hint 5

Front 6

A vast, underwater mountain chain is called a (n) _________. HINT

Back 6

ocean ridge

Hint 6

HINT : Ruffles have>>>

Front 7

Earth has a layer that is plastic like material, which is slow flowing molten rock, which causes the tectonic plates to move. What is this layer called? HINT

Back 7

asthenosphere

Hint 7

HINT: It is "soft" and very very hot!! HINT 2: it is where convection occurs.

Front 8

Scientists think the continents once formed a large, single landmass that broke apart, and the continents slowly drifted to their present locations. What is the name given to this hypothesis? HINT

Back 8

continental drift

Hint 8

HINT: Ice Age

Front 9

What process forms an ocean basin? CHOICES:two crustal plates freezing,two crustal plates melting,two crustal plates colliding,two crustal plates moving apart HINT

Back 9

two crustal plates moving apart

Hint 9

Front 10

There is a process where the heat flow and movement of material within the Earth causes the plates on the surface to move. What is the name of this process? HINT

Back 10

convection

Hint 10

HINT: It takes place in the as/thenosphere.

Front 11

Name 7 things that is caused by plate tectonics.

Back 11

mountains, earthquakes, volcanes, ocean basins, deep sea trenches, sea-floor spreading, rift valleys

Front 12

What kind of fault occurs where tectonic plates slide horizontally past each other

Back 12

transform

Front 13

Seafloor spreading occurs because ____.CHOICES new material is being added to the asthenosphere,earthquakes break apart the ocean floor,sediments accumulate at the area of spreadinG molten material beneath Earth's crust rises to the surface HINT

Back 13

molten material beneath Earth's crust rises to the surface

Hint 13

Front 14

The youngest rocks on the ocean floor are located _____. CHOICES:at mid-ocean ridges, far from mid-ocean ridges HINT

Back 14

at mid-ocean ridges

Hint 14

HINT: its closest to where they were "born"

Front 15

The oldest rocks on the ocean floor are located _____. CHOICES at mid-ocean ridges, far from mid-ocean ridges HINT

Back 15

far from mid-ocean ridges

Hint 15

HINT: its furthest from where they were "born".

Front 16

What is the range that plates move at? 1 to 12 cm per_______ HINT

Back 16

year

Hint 16

HINT: What is the common unit for human age? HINT 2: choices (minute, day, year, decade)

Front 17

Active volcanoes are most likely to form at _____ boundaries. HINT

Back 17

convergent boundaries (subduction)

Hint 17

HINT: Deep ocean trenches.

Front 18

Which is a way scientist have been able to study Earths interior?measuring earthquake waves as they travel through Earths surface, gathering samples from the liquid outer core,weighing rocks found near the outer core determining their densities,digging deep wells into Earths core HINT

Back 18

measuring earthquake waves as they travel through Earths surface

Hint 18

HINT: the deepest we've been is 7 miles in the Earth's crust

Front 19

Why is the Theory of Plate Tectonics called a Theory and NOT a Law? HINT

Back 19

It Explains why the plates move.

Hint 19

(Hint: what is the 3rd letter in Theory?)

Front 20

Another name for boundary. HINT

Back 20

fault

Hint 20

Hint: Its NOT your ....