Geology

Which state of matter is the earth's inner core?

• plasma

• liquid

• solid

• gas

Which earth layer is made up of the upper mantle and the crust?

• core

• lower mantle

• asthenosphere

• lithosphere

What is geology?

• the study of rocks

• the study of history

• the study of maps

• the study of earth

Uniformitarianism states that the processes that formed the earth are

• always at the same gradual rate

• natural

• changing based on certain conditions

• always in the same ways

Old-earth (or deep-time) geologists believe the earth to be ______________ years old.

• millions of

• several thousand

• billions of

• hundreds of

This layer of the earth is the thickest part

• crust

• outer core

• mantle

• inner core

This layer of the earth is the thinnest part

• crust

• outer core

• mantle

• inner core

Which of these is a characteristic of the earth that allows it to support life?

• The right amount of gravity

• The right tilt and rotation

• Plenty of liquid water

• An atmosphere that protects it

What type of rock is formed when magma and lava cools and hardens?

• minerals
• sedimentary
• igneous
• metamorphic

Series of natural processes by which rocks are slowly

changed from one kind of a rock to another.

• igneous rock

• metamorphic rock

• sedimentary rock

• rock cycle