Earth Crusts PreLess

What are the type of Earth's crusts? Choose two answers

• Oceanic crust

• Continental crust

• Outer crust

• Rocky crust

• Inner crust

What is oceanic crust?

• The outermost layer of Earth's ocean basins.
• A type of rock found in deserts.
• The top layer of the Earth's atmosphere.
• The layer of ice covering the North Pole.

Tags

NGSS.MS-ESS2-3

What is continental crust? Choose two answers

• The landmasses which forms the continents

• The layer of molten lava beneath the Earth's surface
• The layer of ice covering the North and South Poles
• The layer of sediment at the bottom of the ocean
• The areas of shallow seabed close to their shores

Tags

NGSS.MS-ESS2-1

Which is the less dense and thicker layer of Earth's crust?

• Oceanic crust
• Continental crust

Which is the geologically older crust?

• Volcanic crust
• Oceanic crust
• Magma crust
• Continental crust

Oceanic crust is composed of _________ that is dark in colour

• quartzite
• limestone
• basaltic rock
• granitic rock

Both continental and oceanic crusts are high in silicon and oxygen content

• True
• Only continental crust is high in silicon and oxygen content

• Only oceanic crust is high in silicon and oxygen content

Which crust is higher in aluminium, sodium and potassium elements?

• Oceanic crust
• Continental crust
• Mantle crust
• Earth's core

Oceanic crust has higher _________, __________, and __________ elements

• sodium, potassium, and chlorine
• nitrogen, phosphorus, and sulfur
• aluminum, silicon, and oxygen
• magnesium, iron, and calcium

Tags

NGSS.MS-PS1-1

Continental crust is thinner than oceanic crust

• Depends on the location
• Not sure
• False
• True

Tags

NGSS.HS-ESS1-5