Sci Lesson 1 Earthquakes

Question 1

What is always moving?

Answer 1

Crust of the earth

Question 2

What causes earthquakes?

Answer 2

the sudden movement of the Earth’s crust can cause rocks to change its position and release a big amount of energy that can cause earthquakes.

Question 3

What are the 3 main ways to do when an earthquake occurs?

Answer 3

Drop, Cover, and Hold

Question 4

What are the Earth’s 3 layers?

Answer 4

Crust, Mantle, and Core

Question 5

Outermost layer where living things exist?

Answer 5

Crust

Question 6

What is Crust made up of?

Answer 6

Basalt and granite rocks

Question 7

What is crust?

Answer 7

Outermost layer where living things exist

Question 8

What is the second layer?

Answer 8

Mantle

Question 9

Why the properties and physical state of the mantle are not uniform throughout?

Answer 9

Due to the difference of temperature

Question 10

Stable and mostly solid?

Answer 10

Upper Mantle

Question 11

is liquid because of extreme heat or very extreme heat or very high temperature and pressure

Answer 11

lower mantle

Question 12

What is upper mantle?

Answer 12

stable and mostly solid

Question 13

What is lower mantle?

Answer 13

is liquid because of extreme heat or very extreme heat or very high temperature and pressure

Question 14

What is the liquid part of the mantle?

Answer 14

Hot molten rocks

Question 15

What is the core’s two layers?

Answer 15

Outer core and Inner Core

Question 16

What is the outer core made out of?

Answer 16

liquid

Question 17

What is the inner core made out of?

Answer 17

Solid

Question 18

The crust and the solid upper part of the mantle make up the what?

Answer 18

Lithosphere

Question 19

The liquid part of the mantle and the outer core make up the what?

Answer 19

Asthenosphere

Question 20

What is Lithosphere?

Answer 20

The crust and the solid upper part of the mantle

Question 21

What is Asthenosphere?

Answer 21

The liquid part of the mantle and the outer core

Question 22

The lithosphere floats in the what?

Answer 22

Asthenosphere

Question 23

According to the Plate Tectonic Theory, the Earth’s crust is broken into separate pieces is called what?

Answer 23

Tectonic Plates

Question 24

Tectonic Plates move relative to each other at a rate of what?

Answer 24

5 to 10 centimeters per year.

Question 25

Are the sites of many processes that shape the surface of the Earth, including earthquakes.

Answer 25

Plate Boundaries

Question 26

3 Types of Tectonic Boundaries

Answer 26

Convergent Boundary, Transform Boundary, and Divergent Boundary

Question 26

What occurs when two plates move towards each other?

Answer 26

Convergent boundary

Question 27

What happens when plates move away from each other?

Answer 27

Divergent boundary

Question 28

Two plates sliding past each other forms what?

Answer 28

Transform boundary

Question 29

What causes the movement of molten rocks?

Answer 29

Heat and pressure in the asthenosphere

Question 30

What are waves that travel through the Earth's layers and give out low frequency energy?

Answer 30

Seismic Waves

Question 31

Seismic waves are recorded using a what?

Answer 31

Seismograph

Question 32

How does an earthquake occur?

Answer 32

When rocks break in a fault or crack in the crust

Question 33

The point of origin of an earthquake underground is the what?

Answer 33

Focus

Question 34

The point directly above the focus on the surface of the Earth is the

Answer 34

Epicenter

Question 35

Earthquake is felt the strongest in the what?

Answer 35

Epicenter

Question 36

The movement of the breaking rocks underground release large amount of energy that caused what?

Answer 36

Seismic Waves

Question 37

Sudden movement of the rocks or when two tectonic plates collide against each other, it is called a what?

Answer 37

Tectonic Earthquake

Question 38

Due to the movement of magma within the volcanoes, it is called a what?

Answer 38

Volcanic Earthquake

Question 39

Sometimes, earthquakes occur because of human activity such as big explosions in the wrong treatment of the ground may trigger what?

Answer 39

Man-made earthquakes

Question 40

Earthquakes generally occur along what?

Answer 40

Faults

Question 41

What are cracks in the Earth's crust between two big plates?

Answer 41

Faults

Question 42

What agency of the government monitors earthquakes?

Answer 42

PHIVOLCS

Question 43

PHIVOLCS

Answer 43

Philippine Institute of Volcanology and Seismology

Question 44

The strength and damage caused by an earthquake is measured by what?

Answer 44

Magnitude or intensity

Question 45

Magnitude is recorded by a what?

Answer 45

Seismograph

Question 46

Is associated with the energy released by an earthquake which is a way to tell its strength

Answer 46

Magnitude

Question 47

Measures the extent of damage caused by an earthquake on the surface of the ground

Answer 47

Intensity