6th grade review pt 2

Scientists think that convection currents that move the plates flow in Earth's

• Continental crust
• oceanic crust
• Asthenosphere
• Lithosphere

Where does molten material from the mantle rise up during the process of sea-floor spreading?

• Along the mid-ocean ridge
• At the north and south poles 
• Along the edges of all the continents near the shoreline and beaches
• at the equator

Which is the most thinnest layer of the earth?

• Mantle
• crust
• Bread crust
• Pizza crust

which one is hotter?

• the crust
• mantle 
• Inner core

This layer of Earth is solid Iron and Nickel

• Outer Core
• Mantle
• Inner Core
• Crust

What is the name of the layer that contains the uppermost mantle and crust

• Asthenosphere
• Mesosphere
• Lithosphere
• Transosphere

This layer of Earth is the thickest part

• crust
• outer core
• mantle
• inner core

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

Which type of plate boundary would cause mountains to form

• Transform
• Convergent
• Divergent
• Reform

Evidence to support continental drift included ______________.

• remains of human beings on a number of continents
• similar fossils found on different continents
• how the continents drifted
• written records