Earth Science Review

Which of the following Earth's layers is composed of molten iron and nickel?

• crust

• mantle

• outer core

• inner core

Which of the following Earth's layers is composed of a dense sphere of solid nickel and iron?

• crust

• mantle

• outer core

• inner core

Which of the following refers to the theory that says that the continents have not always been in their present locations but have moved there over millions of years?

• Plate Tectonics Theory

• Continental Drift Theory

• Sea-floor spreading

• Contiguity Theory

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which of the following refers to molten rocks beneath Earth's surface?

• lava

• magma

• geyser

• geode

What is the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents?

• Laurasia

• Atlantis

• Pangaea

• Gondwanaland

Tags

NGSS.MS-ESS2-2

Which of the following refers to the rigid layer that is made up of the uppermost part of the mantle and the crust?

• magnetosphere

• biosphere

• asthenosphere

• lithosphere

Which of the following refers to Earth's largest layer?

• crust

• mantle

• outer core

• inner core

Crust is thinner under the ocean.

• True

• False

What best describes the mantle of Earth?

• a thin layer that is located on the surface

• a solid layer made of iron and nickel

• the largest layer between the crust and outer core

• the smallest layer that is made up of molten rock

Earth is made of different layers that have varying characteristics. Which is the thickest layer?

• the mantle

• the inner core

• the outer core

• the crust