Earth Science Final Review 2

Earth's one natural satilite is the _.

What causes auroras to appear?

When molten rock cools, it hardens to form

The most plentiful gas in earth's atmosphere is

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

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

What is the branch of earth science that studies oceans?

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

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

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

A representation of how something looks or works is called a 

The 3 classifications of rocks are igneous, sedimentary and

The streak of a mineral is 

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

Earth's lithosphere is broken into pieces called

What is the metric unit for length?

How old is the Earth?

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

Which layer of the atmosphere do we live in?

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

All minerals are composed of one or more

The thinnest layer of the Earth is the

The atmosphere is made up of

An astronomer studies the..

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

Radioactivity is produced when unstable nuclei

What is the metric unit for weight?

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

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

Geologists use this to determine a mineral's hardness

The giant impact hypothesis describes

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

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