Earth’s Interior and plate tectonics part 1

1. Which of the following is a source of heat in Earth’s interior?

• Earthquakes

• Solar radiation

• Seismic waves

• Radioactive decay

1. The depth of the boundary between the crust and mantle varies from about 5 to 8 km under ocean basins and about 20 to 70 km under continents. How do scientist study the location of this boundary?

• They study the composition of meteorites.

• They study the behavior of seismic waves.

• They study the composition of volcanic rocks.

• They study the properties of Earth’s magnetic field.

1. Earth formed in a swirling disk of matter surrounding the sun. As particles in the disk collided and stuck together, they grew larger and some eventually became planets. What force was responsible of the collisions between these particle?

• Gravity

• Solar radiation

• Seismic waves

• Radioactive decay

1. Why are meteorites important to the study of Earth’s interior?

• Meteorites are most likely debris ejected from the sun and moon.

• Meteorites come from bodies in space that formed along with the planets and some are thought to have similar composition to Earth’s layers.

• Meteorites come from bodies in space that formed near Earth and are thought to have the same composition as Earth.

• Meteorites formed far outside the solar system at the same times that Earth formed.

1. In the early 1900’s, a hypothesis was introduced that proposed a single large landmass broke into smaller landmasses and formed the continents, which drifted to their present locations. What is the name of the hypothesis?

• Continental drift

• Continental shift

• Plate movement

• Plate tectonics

1. Which layer of the Earth does a tectonic plate ride on top of?

• Asthenosphere

• Outer core

• Lithosphere

• Inner core

1. There are long mountain belts that divide the seafloor and generate new seafloor as magma rises and erupts onto Earth’s surface. What are these mountain belts known as?

• Magnetic poles

• Mid-ocean ridges

• Ocean trenches

• Subduction zones

1. Which process is best explained by the theory of plate tectonics?

• Changes in air pressure

• Earthquakes

• Food chains and webs

• Life cycles of plants

Which layer is plastic and has the consistency of silly putty allowing movement?

• asthenosphere
• lithosphere
• mesosphere
• crust

Tags

NGSS.MS-ESS2-1

What is the inner most layer of Earth?

• core
• outer core
• inner core
• asthenosphere

Tags

NGSS.HS-ESS2-3