Which section of Earth is composed primarily of liquid metal?

• crust

• mantle

• inner core

• outer core

What type of landform is MOST likely formed by a divergent tectonic plate boundary?

• ocean trench

• island arc

• folded mountains

• rift zone

The continental crust floats on top of the mantle because the crust is

• made of a liquid material

• separated from the mantle by a layer of water

• less dense than the mantle

• made up of oxygen which is a light element

The diagram above shows the composition of the surface of Earth. Which best summarizes the composition of the surface of Earth?

• Earth’s surface contains more water than land.

• Earth’s surface contains more land than water.

• Three-fourths of Earth’s surface is land.

• One-fourth of Earth’s surface is water.

The first person to introduce the idea of the continents moving around the surface of Earth

was

• Charles Darwin

• Albert Einstein

• Alfred Wegner

• Niels Bohr

Tags

NGSS.HS-ESS1-5

Which farming method involves planting different vegetables in different places each growing season to maintain soil quality?

• crop rotation

• contour plowing

• terrace farming

• conservation plowing

Tags

NGSS.MS-LS2-5

Due to extreme pressure, the inner core of Earth is

• plasma

• solid

• liquid

• gas

A student uses clay to construct a model of Earth. Which layer of the model should be the

thinnest layer?

• the layer representing the mantle

• the layer representing the outer core

• the layer representing the inner core

• the layer representing the crust

Mount St. Helens was a cone-shaped mountain that formed when molten material reached the surface of Earth and formed layers. Cone-shaped mountains form as a result of which one of these events?

• hurricanes

• volcanic eruptions

• sediment deposition

• earthquakes

Tags

NGSS.MS-ESS2-2

Crustal plates that pull apart from one another MOST likely form

• rift zones

• strike-slip faults

• volcanic island arcs

• oceanic trenches

Tags

NGSS.MS-ESS2-3