Structure & Movement of Earth's Layer

Question 1

What are the two types of seismic waves?

Answer 1

Body and Surface Waves

Question 2

What are the two types of body waves?

Answer 2

P-Waves and S-Waves

Question 3

What produces seismic waves?

Answer 3

Earthquakes

Question 4

Which body wave is the fastest?

Answer 4

P-Waves

Question 5

Which seismic wave can travel to the mantle, not the outer core?

Answer 5

S-wave

Question 6

Which seismic wave only travel on the earth surface?

Answer 6

Surface Waves

Question 7

Which seismic wave refracts and cannot penetrate the core?

Answer 7

S-waves

Question 8

Which seismic can penetrate the core but refracts?

Answer 8

P-waves

Question 9

How can we study earthquake waves in order to obtain useful information regarding the composition of the interior of the earth?

Answer 9

Earthquake waves travel at different rates through different materials allowing scientists to study the different layers.

Question 10

Which one cases the most damage?

Answer 10

Surface waves

Question 11

Which one will arrive first?

Answer 11

P-waves

Question 12

P-waves travel fastest through which layer?

Answer 12

Inner core (Densest Layer)

Question 13

The theory that the outer core is liquid is best supported by what evidence?

Answer 13

S-waves do not pass through it and P-waves refract.

Question 14

Which type of wave can penetrate the outer and inner core?

Answer 14

P-waves

Question 15

What are the layers of the Earth?

Answer 15

1. the crust
2. the mantle
3. the outer core
4. the inner core

Question 16

Which is the hottest layer?

Answer 16

Inner Core

Question 17

What keeps the lithosphere from melting?

Answer 17

Cooler Temperatures

Question 18

What property distinguishes the earth’s Crust,mantle, and core?

Answer 18

Composition

Question 19

What are two types of the Earth’s Crust?

Answer 19

Continental and Oceanic

Question 20

Compare the thickness of the Earths crust under oceans versus under mountain ranges.

Answer 20

Oceanic crust is thinner than Continental Crust.

Question 21

Which is more dense? Oceanic or Continental?

Answer 21

Oceanic

Question 22

What 3 properties increase as you move closer to the center of Earth?

Answer 22

1. Pressure
2. Temperature
3. Density

Question 23

The theory of sea-floor spreading supports ideas that new crust is being formed along mid-ocean….

Answer 23

RIDGES

Question 24

What are convection currents?

Answer 24

Molten rock is heated and rises then cools and falls as this process repeats again. This motion causes plated move apart.