Earth Science Final Review 2

Question 1

When a mineral breaks along a flat surface, it has a property called

Accepted Answer

cleavage

Question 2

Wegener's continental drift hypothesis stated that all the continents were once joined together to form

Accepted Answer

a supercontinent

Question 3

Earth's one natural satilite is the _.

Accepted Answer

moon

Question 4

The most plentiful gas in earth's atmosphere is

Accepted Answer

Nitrogen

Question 5

Radioactivity is produced when unstable nuclei

Accepted Answer

break down

Question 6

What hypothesis describes how the solar system formed from a swirling cloud of gas and dust?

Accepted Answer

nebular theory

Question 7

Geologists use this to determine a mineral's hardness

Accepted Answer

Moh's hardness scale

Question 8

The giant impact hypothesis describes

Accepted Answer

How the moon formed

Question 9

When the solar system formed, the spheres that lost most of their gases became the

Accepted Answer

inner planets

Question 10

Which layer is the visible "surface" of the sun?

Accepted Answer

photosphere

Question 11

The 3 classifications of rocks are igneous, sedimentary and

Accepted Answer

metamorphic

Question 12

The thinnest layer of the Earth is the

Accepted Answer

crust

Question 13

All minerals are composed of one or more

Accepted Answer

elements

Question 14

What are two conditions that help an organism become a fossil?

Accepted Answer

fast burial and hard parts

Question 15

What is the metric unit for weight?

Accepted Answer

gram

Question 16

What is the branch of earth science that studies oceans?

Accepted Answer

oceanography

Question 17

Which layer of the atmosphere do we live in?

Accepted Answer

troposphere

Question 18

Scientists rejected Wegener's Theory of Continental Drift because he could

Accepted Answer

not describe what caused the continents to move

Question 19

What causes auroras to appear?

Accepted Answer

solar flares

Question 20

The atmosphere is made up of

Accepted Answer

air

Question 21

What is the metric unit for length?

Accepted Answer

meter

Question 22

The streak of a mineral is

Accepted Answer

its powdered form

Question 23

Earth's lithosphere is broken into pieces called

Accepted Answer

plates

Question 24

An astronomer studies the..

Accepted Answer

stars

Question 25

How old is the Earth?

Accepted Answer

4.6 billion years

Question 26

When molten rock cools, it hardens to form

Accepted Answer

igneous rock

Question 27

The main layers of the atmosphere are classified according to changes in

Accepted Answer

temperature

Question 28

Which of the following is an example of human activity that contributes to climate change?

Accepted Answer

Burning fossil fuels

Question 29

What component of the stratosphere helps protect Earth from UV rays?

Accepted Answer

ozone

Question 30

An earth scientist who studies rocks is called a...

Accepted Answer

geologist

Question 31

What type of boundary do plates move away from each other?

Accepted Answer

divergent

Question 32

A cloud of dust and gas in space is called a _.

Accepted Answer

nebula

Question 33

A representation of how something looks or works is called a

Accepted Answer

model

Earth Science Final Review 2

Questions 33

Earth Science Final Review 2

Questions 33