Unit 3 Pre test

Front

What is the hottest layer of the Earth that is solid and under the most pressure?

Back

Inner core

Front

What is the Asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Front

What is the thickest layer of the Earth?

Back

Mantle

Front

What type of rock forms from compressed or cemented layers of sediment?

Back

Sedimentary rock

Front

Which type of rock is formed from the cooling and solidification of magma or lava?

Back

Igneous rock

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What is the primary composition of the Earth's inner core?

Back

Iron and nickel.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface, while lava is magma that has reached the surface.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What process leads to the formation of sedimentary rocks?

Back

Lithification, which includes compaction and cementation of sediments.