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Geography Year 8 -Earth's Changing surface

Total questions: 64

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

The thinnest layer of the Earth is the __________

a)

crust

b)

mantle

c)

outer core

d)

inner core

2.

Select the 3 layers of the Earth

a)

Crust

b)

Mantel

c)

Core (Outer core and inner core)

d)

Atmosphere

3.

The uppermost layer over the earth’s surface is called :

a)

Crust

b)

Mantle

c)

Core

4.

It is believed to be the cause of earth's magnetic field.

a)

Crust

b)

Mantle

c)

Inner core

d)

Outer core

5.

Innermost layer of the earth.

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

6.

Solid layer of Iron and Nickel

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

7.

liquid layer of Iron and Nickel

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

8.

semi-solid rock layer

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

9.

thickest layer

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

10.

solid rock layer

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

11.

broken down in plates

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

12.

Temperatures of 6000'C

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

13.

Temperatures of 4500'C

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

14.

These are the crusts lthat form land/the continents.

a)

Hydropolis Crust

b)

Atlantis Crust

c)

Oceanic Crust

d)

Continental Crust

15.
The group of volcanoes located around the Pacific Ocean are known as
a)
Aleutian Islands
b)
Hawaiian Islands
c)
Ring the Fire
d)
LaLa Land
16.
Earth's crust is broken up into several large rocky pieces called ...
a)
plates
b)
faults
c)
fossils
d)
puzzle pieces
17.
Who came up with the theory of Continental Drift?
a)
Albert Einstein
b)
Issac Newton
c)
Alfred Wegener
d)
Mrs. Collar
18.
What causes most earthquakes?
a)
Wind blowing very hard.
b)
The core moving.
c)
Plates rubbing on each other.
d)
Rocks rolling down hill.
19.

What is the border between two tectonic plates called?

a)

Plate boundary

b)

Oceanic Plate

c)

Mantle

d)

Crust

20.

Name the plate labelled "C"

a)

north american plate

b)

nazca plate

c)

indian plate

d)

african plate

21.

What is the name of the tectonic plate labelled "D"

a)

Eurasian plate

b)

North America plate

c)

Antarctica plate

d)

Cocos plate

22.

Plate B is also known as ?

a)

Antarctica plate

b)

African plate

c)

South American plate

d)

Eurasian plate

23.

Plate F is also known as the ....................

a)

Pacific plate

b)

Indo-Australian plate

c)

African plate

d)

Eurasian plate

24.

The plate labelled "L" is ?

a)

Jucan De Fuca plate

b)

Nazca plate

c)

South American plate

d)

Pacific plate

25.

Plate labelled "H" is the ____________ plate?

a)

South American plate

b)

Cocos plate

c)

North American plate

d)

African plate

26.

"N" is the __________________ plate

a)

Pacific plate

b)

Antarctica plate

c)

Eurasian plate

d)

Indo-Australian plate

27.

"G" is the ____________________ plate

a)

North American

b)

Cocos

c)

Nazca

d)

Juan de Fuca

e)

South American

28.
Earth's crust is broken up into several large rocky pieces called ...
a)
plates
b)
faults
c)
fossils
d)
puzzle pieces
29.

The idea that continents were once part of a single landmass that broke apart and

moved

a)

Continental Drift

b)

Tectonic Plates

c)

Transform

30.

The fact that similar fossils are found on both sides of the ocean is evidence of

a)

magnetic reversal.

b)

global positioning.

c)

continental drift.

d)

oceanic drift.

31.

Most geologists think that the movement of Earth’s plates is caused by _______

a)

convection.

b)

continental drift.

c)

subduction.

d)

conduction.

32.
What are the two types of crust
a)
continental and oceanic
b)
ocean and upper
c)
lower and upper
d)
pizza and subway
33.

What is common at plate boundaries pushing on each other?

a)

Valleys

b)

Canyons

c)

Mountains

d)

Rivers

34.
What is the point on the earths surface directly above the point of origin of the earthquake?
a)
Focus
b)
Epicentre
35.
What is the point underground where the rock breaks and waves move out in all directions?
a)
Focus
b)
Epicentre
36.
What are the shocks caused by an earthquake?
a)
Seismic waves
b)
Seismograph
c)
Aftershock
37.

What type of damages can occur due to an earthquake triggering a tsunami?

a)

Polluted water

b)

Destruction of buildings

c)

Drowning

d)

Large amounts of debris

38.

Most of the magma from a volcano comes up through a long, narrow, rocky tube called a...?

a)

shoot

b)

vent

c)

tube

d)

slide

39.

What can an earthquake underwater create?

a)

Tsunami

b)

Volcano

c)

Hurricane

d)

Tornado

40.

What are weaker earthquakes called that happen after the main earthquake?

a)

tsunamis

b)

aftershocks

c)

aftershakes

d)

plate boundaries

41.

What instrument is used to measure the shaking of the earth's surface?

a)

seismometer

b)

richter scale

c)

plate tectonic scale

d)

magnitudemometer

42.

What instrument measures the strength of an earthquake on a scale of 1 - 10?

a)

seismograph

b)

seismometer

c)

richter scale

43.

The movement of the earth’s plates causes

a)

cyclones

b)

earthquakes

c)

thunderstorms

44.
This area is responsible for 90% of all earthquakes in  the world and contains numerous faults:
a)
Indian Ocean
b)
English Canal
c)
The Ring of Fire
d)
Mid-Atlantic Ridge
45.

The point within the earth where rock is under stress is called _________________________.

a)

Focus

b)

Epicentre

46.

The point directly above the focus on the surface is called ___________________.

a)

Epicentre

b)

Hypocenter

47.

Earthquakes are measured on the:

a)

Rodham scale

b)

Henley scale

c)

Richter scale

d)

Morrissey scale

48.

_________ is another word for an earthquake's strength.

a)

Intensity

b)

Frequency

c)

Magnitude

d)

Pressure

49.

An unusually large sea wave produced by a seaquake or undersea volcanic eruption is known as what?

a)

Tsunami

b)

Monsoon

c)

El Nino

d)

Earthquake

50.
As magma rises towards the surface it collects in a 'room' called a _____ _____ . 
a)
magma chamber
b)
side vent
c)
main vent
d)
lava chamber
51.
Volcanoes that have recently erupted are known as:
a)
Extinct Volcano
b)
Dormant Volcano
c)
Active Volcano
d)
What's a volcano?
52.

Where are volcanoes most likely to form?

a)

along plate boundaries

b)

near the center of continents

c)

near water

d)

on the moon

53.

A bowl shaped area that may form at the top of a volcano around the central vent

a)

crater

b)

vent

c)

tube

d)

leftovers

54.
What is letter B in the picture?
a)
Magma Chamber
b)
Crater
c)
Vent
d)
Conduit
55.
What is letter C in the picture?
a)
Vent
b)
Crater
c)
Caldera
d)
Tephra
56.
What is letter D in the picture?
a)
Crater
b)
Vent
c)
Conduit
d)
Tephra
57.
What is letter E in the picture?
a)

Ash Cloud

b)
Pyroclastic Flow
c)
Magma Chamber
d)
Vent
58.
What is letter F in the picture?
a)

Layers of Lava and ash

b)
Crater
c)
Vent
d)
Tephra
59.

Volcanoes that have not erupted for many years but not fully extinct

a)
Extinct Volcano
b)
Dormant Volcano
c)
Active Volcano
d)
What's a volcano?
60.

Volcanoes that are nver likely to erupt again

a)
Extinct Volcano
b)
Dormant Volcano
c)
Active Volcano
d)
What's a volcano?
61.

These occur when volcanic ash and debris mix with rain or melting snow.

a)

Lahars/Mudflows

b)

Pyroclastic Flows

c)

Ash clouds

d)

Floods

62.

Hot and scary, but you can usually out run it!

a)

Magma

b)

Lahar

c)

Lava flows

d)

Pyroclastic Flow

63.

This is full of super heated gases, suspended ash and flattens everything in its path.

a)

Lahar

b)

Gases

c)

Lava Flow

d)

Pyroclastic Flow

64.

This is often emitted from volcanoes. It is invisible, but it can be deadly!

a)

Volcanic gases

b)

Volcanic Ash

c)

Sulphur Dioxide

d)

Carbon Dioxide

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