Earth's Interior

What evidence exists that proves that Earth has layers?

• They can be seen from special locations on the Earth

• observations of earthquakes and buildings swaying

• seismic data from earthquakes on the other side of the Earth

• tsunami data from other countries and the impact on the land

• rock samples from deep layers

Most geologists think that the movement of Earth’s plates is caused by _______

• convection.

• continental drift.

• subduction.

• conduction.

Tags

NGSS.MS-ESS2-3

The deeper into Earth you go the...

• greater the pressure
• less pressure
• pressure remains the same

Scientists think that convection currents flow in Earth's

• continents
• mantle
• lithosphere
• inner core.

Earth's oceanic crust is ______ than continental crust.

• thinner but denser
• thicker and denser
• thicker but less dense
• thinner and less dense

Which of Earth's layers is made of SOLID iron and nickel?

• crust 
• mantle
• outer core
• inner core

Which is the coolest layer?

• crust

• mantle

• outer core

• inner core

Which sublayer is made up of the crust and upper mantle?

• Inner Core
• Outer Core
• Lithosphere
• Asthenosphere

Is the outer core a liquid or solid?

• liquid
• solid

Temperature _____________________ as you go deeper into the earth.

• increases
• decreases
• goes up and down depending on the layer
• stays the same