Earth Science

Which compositional layer is made of iron and some nickel?

• crust
• mantle
• core

Which physical layer is the thinnest?

• crust
• mantle
• core

Which layer of the core is solid?

• inner
• outer

What are the two types of crust?

• top crust,bottom crust
• oceanic crust, continental crust
• water,land
• none of the above 

What is the correct layers of the earth starting with the surface?

• crust, outer core, inner core, mantle
• mantle, outer core, inner core ,crust
• crust, mantle, outer core, inner core
• outer core, inner core , crust, mantle

Which layer of Earth is liquid metal?

• Outer Core
• Mantle
• Inner Core
• Asthenosphere

pressure and temperature ________ as you move deeper below Earth's surface

• increase
• decrease
• stay the same

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

This is a picture of glacier scars found in Africa.  What are these evidence for?

• Africa has always been near the equator
• Africa was once in an area of the Earth that had a very cold climate
• The continents have not moved
• sea floor spreading

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above