Earth's Structure

What are the three main layers of the Earth?

• Atmosphere, Crust, Core

• Lithosphere, Mantle, Inner Core

• Magma, Crust, Mantle

• Crust, Mantle, Core

Which layer of the Earth is the thinnest?

• inner core

• outer core

• crust

• mantle

What is the outermost layer of the Earth called?

• mantle

• core

• atmosphere

• crust

Tags

NGSS.MS-ESS2-4

What is the theory that explains how the Earth's plates move called?

• Continental Drift

• Earthquake Theory

• Plate Tectonics

• Crustal Movement

Tags

NGSS.MS-ESS2-3

Who proposed the theory of continental drift?

• Isaac Newton

• Marie Curie

• Charles Darwin

• Alfred Wegener

Tags

NGSS.HS-ESS1-5

What evidence supports the theory of continental drift?

• Changes in the Earth's magnetic field

• Variations in atmospheric pressure

• Fit of continents, similarities in rock formations and fossils, matching mountain ranges and geological structures, distribution of plant and animal species

• Different colors of ocean water

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What are the major tectonic plates that make up the Earth's lithosphere?

• South Pacific Plate

• North Eurasian Plate

• African Plate, Antarctic Plate, Eurasian Plate, Indo-Australian Plate, North American Plate, Pacific Plate, South American Plate

• Eurasian-African Plate

What happens at plate boundaries?

• Volcanoes erupt

• Tectonic plates merge

• Various geological processes occur such as seafloor spreading, subduction, and transform faults.

• Magnetic field changes

What type of boundary is formed when two plates move apart?

• Convergent boundary

• Transform boundary

• Subduction boundary

• Divergent boundary

What type of boundary is formed when two plates collide?

• Convergent boundary

• Transform boundary

• Subduction boundary

• Divergent boundary