Structures of Earth

What is the main cause of earthquakes?

• large ocean waves called tsunamis

• movement of tectonic plates

• erosion of topsoil by rivers

• animals burrowing underground

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

In the Earth's mantle, heat is transferred in large convection currents. Within these currents;

• cooler and hotter rock rise but do not sink

• hotter rock rises and hotter rock sinks

• hotter rock rises and cooler rock sinks

• hotter and cooler rock sink but do not rise

Tags

NGSS.MS-PS1-4

Which of the following statements is true?

• The Earth's lithosphere is made up of tectonic plates.

• The Earth's mantle is made up of continents.

• The Earth's mantle is made up of tectonic plates.

• The Earth's lithosphere is entirely made up of liquid magma.

Tags

NGSS.MS-ESS2-3

At divergent boundaries plates move apart, magma rises upward between them and erupts onto the ocean floor as lava. This lava cools quickly to form solid rock. Over time, these hardened lava flows build up on top of each other and are uplifted by tectonic forces to form mid ocean ridges.

Based on this information, what type of rock are mid-ocean ridges made up?

• metamorphic rock

• sedimentary rock

• eroded rock

• igneous rock

Tags

NGSS.MS-ESS2-2

The Earth's surface is divided up into several large movable tectonic plates. Which of the following is true about these plates?

• The Earth has only continental tectonic plates.

• The Earth has both continental and oceanic tectonic plates.

• The Earth has only oceanic tectonic plates.

• The Earth has neither continental nor oceanic

Tags

NGSS.MS-ESS2-3

Many people have a tendency to think that heat and temperature are the same thing. However, this is not true. Heat describes:

• the average amount of energy possessed by an object due to the potential energy stored in its bonds.

• the average amount of energy possessed by an object due to the motion of its particles.

• energy that flows from cooler objects to warmer objects.

• energy that flows from warmer objects to cooler objects.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which layer is only a liquid

• Crust

• Mantle

• Outer core

• Inner core

Which layer is the thinnest

• Crust

• Mantle

• Outer core

• Inner core

Which layer is solid Ni and Fe (Nickel and Iron)

• Crust

• Mantle

• Outer core

• Inner core

Continental crust is ...

• thinner but more dense

• thicker but less dense

• thicker but more dense

• thinner but less dense