Earth Science Exam 1 review - Keeton

Question 1

This region of mantle rock is somewhat pliable or plastic and has convection currents

Accepted Answer

asthenosphere

Question 2

The magnetic field around the Earth protects us from

Accepted Answer

solar radiation

Question 3

Convection currents transfer heat energy

Accepted Answer

through fluids.

Question 4

Seismic waves will change speeds when

Accepted Answer

they encounter materials of different densities.

Question 5

In sea floor spreading, molten material rises up from the mantle and erupts

Accepted Answer

along mid-ocean ridges

Question 6

Increasing heat energy will cause the particles of matter to

Accepted Answer

move faster.

Question 7

What was observed by scientists in a submersible near the mid-ocean ridge?

Accepted Answer

Pillow rocks formed from the rapid cooling of magma

Question 8

Two tectonic plates meet at a convergent boundary, what determines which plate is subducted?

Accepted Answer

density of plate

Question 9

S- waves move

Accepted Answer

both A and B

Question 10

How did scientists determine rocks equal distant from mid ocean ridges were same age?

Accepted Answer

radiometric dating

Question 11

The farther away you get from the mid ocean ridge, the _______ the rock.

Accepted Answer

older

Question 12

The geological feature associated with subduction zones are

Accepted Answer

deep ocean trenches

Question 13

What are the two main sources of thermal energy in the Earth's interior?

Accepted Answer

gravity and radioactive decay

Question 14

Earth's lithosphere is in slow constant motion driven by convection currents is proposed by

Accepted Answer

Theory of plate tectonics

Question 15

The formula for density is

Accepted Answer

mass divided by volume

Question 16

A place where two plates slip past each other in opposite directions is a

Accepted Answer

transform boundry

Question 17

When the temperature and volume of an object increases

Accepted Answer

density decreases

Question 18

What caused the materials of Earth to separate into unique layers from the core to the crust?

Accepted Answer

The different densities of materials.

Question 19

When two continental plates collide what geologic feature is formed?

Accepted Answer

mountains

Question 20

Continental crust is composed primarily of

Accepted Answer

granite

Question 21

P-waves are the

Accepted Answer

fastest

Question 22

P-waves movement is described as

Accepted Answer

compressing and expanding

Question 23

S-waves travel through

Accepted Answer

solids and not liquids

Question 24

How do widely distributed fossils of Mesosaurus support the theory of Continental Drift?

Accepted Answer

Fossils carried to present location via continental drift.

Question 25

Hess used which piece of evidence to support hypothesis of sea floor spreading

Accepted Answer

All of the above

Question 26

When the heat source is removed from a fluid, convection currents in the fluid will

Accepted Answer

slow and come to a stop.

Question 27

Process of ocean floor sinking into mantle and forming a trench is known as

Accepted Answer

Subduction

Question 28

The uppermost part of the upper mantle and crust form the solid

Accepted Answer

lithosphere

Earth Science Exam 1 review - Keeton

Questions 28

Earth Science Exam 1 review - Keeton

Questions 28