Earth Science

Question 1

What geological process occur when a denser plate goes under a less dense plate

Answer 1

Subduction

Question 2

natural geologic phenomena that are caused by the sudden movement of large volume of rocks

Answer 2

Earthquake

Question 3

type of earthquake that is caused by the movement along faults and plate boundaries

Answer 3

Tectonic

Question 4

type of earthquake caused by a volcanic activity

Answer 4

Volcanic

Question 5

Faults are horizontally positioned. True or False.

Answer 5

True

Question 6

point where the earthquake begins

Answer 6

Focus

Question 7

the point directly above the focus

Answer 7

Epicenter

Question 8

rupture or slippage along the fractures of Earth’s crust

Answer 8

Fault

Question 9

study of earthquakes and seismic waves

Answer 9

Seismology

Question 10

produced by the release of energy; all directions from the focus

Answer 10

Seismic waves

Question 11

2 types of seismic waves

Answer 11

Body waves and Surface waves

Question 12

faster types of waves that goes beneath the surface

Answer 12

Body waves

Question 13

waves that go below or around the surface

Answer 13

Surface Waves

Question 14

fastest wave that can travel through solid, liquid, and gasses

Answer 14

P waves (Primary waves)

Question 15

Primary waves are also known as

Answer 15

compressional waves

Question 16

slower waves that can only travel through solids

Answer 16

S waves (Secondary waves)

Question 17

S waves are also known as

Answer 17

shear waves

Question 18

rolling waves

Answer 18

R waves (Rayleigh Waves)

Question 19

waves that have side-to-side movement and most damaging

Answer 19

L waves (Love waves)

Question 20

the measure of the earthquake’s size

Answer 20

Magnitude

Question 21

the degree of shaking; decreases with distance from the epicenter

Answer 21

Intensity

Question 22

method used to find the epicenter of an earthquake

Answer 22

Triangulation Method

Question 23

distribution of mountain ranges are described as

Answer 23

not randomly distributed

Question 24

distribution of volcanoes are

Answer 24

randomly distributed

Question 25

distribution of earthquake epicenters are

Answer 25

randomly distributed

Question 26

apparatus to measure and record vibrations of the earth

Answer 26

Seismograph

Question 27

areas where volcanoes, mountain ranges, and epicenters are located

Answer 27

Seismic Zones

Question 28

the theory is that the Earth's Lithosphere is divided into so-called tectonic plates

Answer 28

Plate Tectonics Theory

Question 29

this is theorized to move on top of the Asthetnosphere

Answer 29

Plate Tectonics/Tectonic PLates

Question 30

region around much of the rim of the pacific plate where many volcanic eruptions and earthquake occur

Answer 30

Pacific Ring of Fire

Question 31

lines at the edges of the different places of the lithosphere

Answer 31

Plate Boundaries

Question 32

transform boundary found in California

Answer 32

San Andreas Fault

Question 33

most geologically active fault in the philippines

Answer 33

West valley fault

Question 34

West Valley Fault are also known as

Answer 34

Marikina Fault Line

Question 35

type of plate boundary where two plates slide past each other

Answer 35

Transform

Question 36

type of plate boundary where two plates moves towards one another

Answer 36

Convergent boundary

Question 37

Convergent boundary are also known as

Answer 37

Reverse fault or Destructive Boundary

Question 38

type of plate boundary where two plates move away from each other

Answer 38

Divergent

Question 39

Divergent Boundary are also known as

Answer 39

Normal fault or Constructive BOundary

Question 40

thinnest and outermost layer of the earth

Answer 40

Crust

Question 41

lower crust and upper mantle; capable of flowing like semi-liquid

Answer 41

Lithosphere

Question 42

what is the movement in the Earth's mantle that causes the plates to move

Answer 42

convection current

Question 43

special feature of the mantle where tectonic plates are moving and located

Answer 43

Asthenosphere

Question 44

movement of heated material as a result of differences in density

Answer 44

convection

Question 45

strong lower part of the mantle

Answer 45

Mesosphere

Question 46

Mantle is made of what elements

Answer 46

Mg, O, Si, Fe

Question 47

made up of molten or liqiuid Iron and Nickel

Answer 47

Outer Core

Question 48

made up of solid Iron and Nickel

Answer 48

Inner core

Question 49

the inner core stays solid despite of hot temperature because of a phenomena called

Answer 49

pressure freezing

Question 50

cause of plate movement which is described as a warm mantle current drive and carry the plates along the conveyer belt in a circular motion

Answer 50

Mantle Convection Current

Question 51

cause of plate movement where there is a buoyant force; ability to float

Answer 51

Ridge Push

Question 52

cause of plate movement where subduction process where the denser plate goes below the less dense pkate

Answer 52

Slab Pull

Question 53

the theory that all continents were once part of a single landmass

Answer 53

Continental Drift Theory

Question 54

supercontinent that is believed to be one single landmass before the continental drift

Answer 54

Pangaea

Question 55

proposed a theory that all continents were one part of a single landmass

Answer 55

Alfred Wegener

Question 56

type of crust which is denser

Answer 56

oceanic crust

Question 57

oceanic crust is denser because of

Answer 57

basalt

Question 58

continental crust is made up of

Answer 58

granite

Question 59

thicker crust

Answer 59

continental crust

Question 60

what does sonar use to measure the depth of water

Answer 60

Sound waves

Question 61

the longer the sound waves take back, the less deep the water is. True or FALSE.

Answer 61

False

Question 62

rocks are _____ at mid-ocean ridge

Answer 62

younger

Question 63

the distance the crust from the ridge the _____ increases

Answer 63

age of the crust

Question 64

_____ rocks are thinner at the ridge

Answer 64

Sediment/Sedimentary

Question 65

rocks at the oceanic floor is ______ than continents

Answer 65

younger

Question 66

who proposed the theory of seafloor spreading

Answer 66

Harry Hess and Robert Dietz

Question 67

most important fossil plant that proves the continent is drifting

Answer 67

Glossopetris

Question 68

shaped the pacific floor using sonar

Answer 68

Harry Hess

Question 69

three theory evidences that the plates are moving

Answer 69

Continental Drift, Seafloor spreading, Magnetic reversal

Question 70

waves that moves up and down

Answer 70

surface waves

Question 71

deepest geological feature

Answer 71

tench