Science Quiz

Question 1

Thinnest layer similar to the skin of an apple

Answer 1

Crust

Question 2

The outermost layer of the earth
This is the part where we and other organisms live

Answer 2

Crust

Question 3

Outermost layer, relatively solid, brittle rock generally composed of graphite or andesite and basalt

Answer 3

Crust

Question 4

Two types of crust

Answer 4

Continental crust
Oceanic crust

Question 5

Approx. 30-45km thick
Made from less dense type of rock called granite

Answer 5

Continental crust

Question 6

Approx.6km thick
Made from denser rock called basalt

Answer 6

Oceanic crust

Question 7

3 geologic processes

Answer 7

Weatheringz, erosion, plate tectonics or plate movements

Question 8

The process by which rock are broken down into smaller pieces

Answer 8

Weathering

Question 9

It is the broken down or dissolving of rock and materials at or near the Earth’s surfaces

Answer 9

Weathering

Question 10

The breakdown through chemical processes, like acid rain

Answer 10

Chemical weathering

Question 11

The breaking of rocks without any chemical change, like by plant roots

Answer 11

Mechanical weathering

Question 12

, as viewed from the space.

Answer 12

Earth

Question 13

The small sphere beside Earth is the

Answer 13

moon.

Question 14

is the third planet from the Sun. It is where we live in. It is the only planet in the solar system that can support life.

Answer 14

Earth

Question 15

is composed of several layers

Answer 15

Earth

Question 16

the primary layers of Earth known as

Answer 16

crust, mantle, core

Question 17

is the process in which the soil particles are loosened or washed away in the valleys, oceans, rivers, streams, or faraway lands.

Answer 17

Soil Erosion or erosion

Question 18

is a non-stoppable process that occurs either slowly or at a higher rate.

Answer 18

Soil erosion or erosion

Question 19

A theory that Earth’s Surface is divided into a few large plates that are constantly moving and changing shape. Geological evidence indicates that the face of Earth’s surface has changed significantly since its initial formation.

Answer 19

Plate tectonics

Question 20

Lying below the lithosphere is the

Answer 20

asthenosphere

Question 21

THe ______ is the ductile part of Earth that is approximately 100 km to 700 km deep from the crust. It also allows the tectonic plates to move over it.

Answer 21

asthenosphere

Question 22

(Crust and upper most solid mantle)

Answer 22

Lithosphere

Question 23

5 discontinuities inside the Earth’s

Answer 23

Conorod diacontinuity
Mohorovicc discontinuity
Repiti discontinuity
Gutteberg discontinuity
Lehmann discontinuity

Question 24

between upper & lower crust

Answer 24

Conorod discontinuity

Question 25

between lower crust & upper mantle

Answer 25

Mohorovicc discontinuity

Question 26

between upper & lower Mantle

Answer 26

Repiti discontinuity

Question 27

• between lower Mantle & outer Core

Answer 27

Guttenberg discontinuity

Question 28

between outer and inner core

Answer 28

Lehmann discontinuity

Question 29

In geology the word ______ is used for a surface at which seismic waves change velocity. One of these surfaces exists at an average depth of 8 kilometres beneath the ocean basin and at an average depth of about 32 kilometres beneath the continents., seismic waves accelerate.

Answer 29

discontinuity

Question 30

is the boundary between the crust and the mantle. The red line in the drawing at right shows its location.

Answer 30

Mohorovicic Discontinuity, or “Moho”,

Question 31

takes up 84% of Earth’s volume. is basically composed of peridotite.

Answer 31

mantle

Question 32

is an igneous rock that is usually dark-colored and coarse-grained rock; it sometimes contains diamonds.

Answer 32

Peridotite

Question 33

contains most of the mass of the Earth.

Answer 33

mantle

Question 34

separates the outer core and the Mantle

Answer 34

Gutenberg discontinuity

Question 35

The boundary between the lower mantle and the outer core

Answer 35

Beno Gutenberg

Question 36

Made mostly of iron and nickel.
the central part of the Earth’s

Answer 36

Core

Question 37

2240 km thick (1400 mi)

• 6093 C (11,000 F)

• Movement is source of Earth’s magnetic field

Answer 37

Outer core

Question 38

solid

1280 km thick (800 mi)

7204 C (13,000 F)

1/3 of the earth’s mass

Answer 38

Inner core

Question 39

Earth’s core consists of a_____ and a_____ . Because the outer core contains iron, when it flows it generates a magnetic field. This is the source of the Earth’s magnetic field.

Answer 39

fluid outer core, solid inner core.

Question 40

Only liquid layer. As the Earth rotates, the liquid outer core spins, creating the Earth’s magnetic field.”

Answer 40

Outer core

Question 41

the Earth has temperatures and pressures so great that the metals are squeezed together and are not able to move. And this is a solid core

Answer 41

inner core

Question 42

is a solid layer of rock on the surface of the planet. The thickness varies between 3 and 30 miles.

Answer 42

crust

Question 43

is a semi-liquid layer of magma, or molten rock, that moves due to convection currents.

Answer 43

mantle

Question 44

The liquid part of the core which has a similar composition to the inner core.

Answer 44

Outer core

Question 45

is the solid part at the center of the Earth. It is made of iron and nickel and has temperatures reaching 5,500°C.

Answer 45

inner core

Question 46

is a scientific theory that tells that Earth’s crust is divided into several plates that move or slide over the mantle.

Answer 46

Plate tectonics

Question 47

The movement of these tectonic plates affects the

Answer 47

seismic activities at different plate boundaries