The earth

Day and night is caused by the _____________ of earth on its axis.

• revolution
• orbit
• rotation

The spinning of an object on its axis is called______

• orbit
• rotation
• revolution
• tide

A scientist who studies Earth's processes and the history that shaped it is called a......

• geologist
• biologist
• teacher
• students

The outermost layer of the Earth that contains the continents and the oceans.

• mantle
• crust
• outer core
• inner core

Which layer of Earth is made up of tectonic plates?

• outer core
• inner core
• asthenosphere
• lithosphere

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• core

About how many days does it take to moon to go through a complete cycle?

• 7 days
• 365 days
• 29 days
• 20 days

Why do we always see the same side of the moon from Earth?

• because the phases change
• because it rotates and revolves at the same rate
• because half of the moon always receives sunlight
• The moon changes positions

Which layer of the Earth is made of iron and some nickel?

• crust

• mantle

• core

Which physical layer is the thinnest?

• crust
• mantle
• core