Earth Science, Grade 6

The relatively thin envelope of gases that forms Earth's outermost layer is called

• atmosphere
•  geosphere
• hydropshere
• biosphere

Earth's ___ is made up of three main parts: a metal core, a solid middle layer, and a rocky outer layer.

• atmosphere
• geosphere
• hydropshere
• biosphere

The ___ contains all of Earth's water.

• atmosphere
• geosphere
• hydrosphere
• biosphere

The parts of Earth that contains living organisms make up the 

• atmosphere
• geosphere
• hydrosphere
• biosphere

Constructive forces shape the land's surface by 

• building up mountains and other land masses
• weathering
• erosion

Destructive forces destroy and wear away landmasses through 

• building up mountains and other land masses
• weathering and erosion

Which of the following is NOT a type of evidence used by scientists to learn about Earth's interior?

• rock samples
• seismic waves
• aerial photographs

True/False: The speed of seismic waves and the paths they take give geologists clues about the structure of the planet.

• True
• False

Which of these is not one of the main layers of the Earth?

• crust
• mantle
• core
• outer shell

The layer of outer rock that includes both dry land and the ocean floor is known as the 

• crust
• mantle
• outer core
• inner core