Earth's Crust

The ______ is the thin outer layer of solid rock around the Earth.

• biosphere

• core

• mantle

• crust

If a hard-boiled egg is an example of the Earth, the shell of the egg would be similar to the ________ of the Earth.

• inner core

• crust

• mantle

• outer core

A ______ is a location on Earth's surface where water, heated by the mantle, bursts through the crust.

• geyser

• waterfall

• stalagmite

• resevoir

Tags

NGSS.MS-ESS2-4

Scientists believe Earth's tectonic plates were once connected as one supercontinent called:

• Pangaea

• Galapagos

• North America

• Seven lands

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which of the following is the correct difference between the oceanic and the continental crust?

• The ocean crust is thicker and less dense

• The continential crust it thicker and more dense

• The oceanic crust is thinner but is more dense.

• The contiential crust is thinner and less dense.

Which of the following is the correct difference between the oceaninc and the continetal crust?

• The contiential crust is thinner and less dense.

• The oceanic crust is thiner but is more dense.

What is the difference between oceanic and continental crust?

• The ocean crust is thicker and less dense

• The continental crust is thicker and more dense

• The oceanic crust is thinner but more dense

• The continental crust is thinner and less dense

Answer explanation

The oceanic crust is thinner (about 5-10 km) but denser (3.0 g/cm³) compared to the continental crust, which is thicker (up to 70 km) and less dense (2.7 g/cm³). Thus, the correct choice is that the oceanic crust is thinner but more dense.

The violent and sudden movement of the earth's crust

• volcano

• earthquake

• avalanche

Tags

NGSS.MS-ESS3-2

The layer beneath Earth's crust that cause the plates to move.

• inner core

• mantle

• crust

• outer core

Tags

NGSS.MS-ESS2-3

If the Earth were like an egg, the crust would be as thick as the

• Shell

• Yolk

• White

• Yellow