PowerPoint Presentation

Earth’s

Changing Surface

including tectonics, earthquakes,

volcanoes, tsunamis, and more

GAME!

A pool of water heated by nearby

underground magma is a:

hot springs

Earth’s crust is broken into large

pieces called:

plates

The theory that the continents have

moved so far over millions of years

that they had to have once been

connected is:

Contintental Drift

The point on the surface above where

an earthquake starts, where the

earthquake is usually felt the most is:

epicenter

Which kind of eruption can give off

a pyroclastic flow of ash, cinders, and

boulders?

explosive eruption

This part of a volcano is the main

exit for magma to reach the surface.

vent

What type of volcano forms from

layers of ash and lava from both

quiet and explosive eruptions?

composite

The ring of fire is an area around

the Pacific plate where subduction

has caused a lot of:

volcanoes

A machine that records the

vibrations of an earthquake is a:

seismograph

What type of volcano forms from

thin layers of lava from quiet eruptions?

shield volcano

This part of a volcano is a large pool

of hot molten rock from the mantle.

magma chamber

Which type of plate boundary can

weaken the crust and form volcanoes?

subduction

If an island volcano collapses in, it

can create a:

atoll

This part of a volcano is the narrow

crack that brings magma to the

surface.

pipe

Which type of plate boundary can

cause earthquakes?

Transform / sliding

What do we call the strength of

an earthquake?

the magnitude

What evidence was found to prove

that there really used to be a

supercontinent?

fossils

What do we call a volcano that is

still likely to erupt?

active

Which kind of fault creates mostly

sideways shaking?

strike-slip

The hot, molten rock that makes

up the mantle is called ________

once it reaches the surface:

lava

Magma trapped under the surface

can create a bulge of rock called a:

dome mountain

or volcanic bulge

What do we call a volcano that is

not likely to erupt ever again?

extinct

Wegener called the supercontinent

before the continents drifted apart:

Pangea

Earth’s surface can be changed by:

earthquakes, volcanoes, tsunamis,

rivers, glaciers, tectonics

The hot, molten rock that makes

up the mantle is called:

magma

What scale for rating earthquakes

do most people use today?

Richter scale

What happens when colliding ocean

and continent plates weaken the crust,

and magma breaks through?

a volcano forms

The crater of a volcano can collapse,

forming a larger crater called a:

caldera

What do we call a volcano that has

not erupted in a long time?

inactive or dormant

Water trapped underground and

heated by nearby magma can build

up pressure and form a:

geyser

This part of a volcano is the bowl

shaped mouth of the volcano.

crater

A break in the crust from plates

sliding is called a:

fault

Which kind of eruption has thick,

sticky lava that clogs the pipe and

builds up pressure?

explosive eruption

Which type of plate boundary is

moving America farther from Europe?

spreading/divergent

What type of volcano forms from

thick layers of ash from explosive

eruptions?

cinder cone

Which type of plate boundary can

form mountains like the Himalayas?

convergent

Which kind of eruption causes most

of its damage by starting fires?

quiet eruption

Which kind of eruption has runny,

fast flowing lava that oozes and

pours out of the vents?

quiet eruption

The point where sliding plates catch

and cause an earthquake is the:

focus

The study of the movement of

Earth’s crust is:

tectonics