Earth and Continental Drift

Which two metals are thought to be found in the core?

• iron and steel
• iron and nickel
• gold and silver
• iron and copper

Which is the coolest part of the planet?

• inner core
• outer core
• mantle
• crust

What is the core made of?

• Molten rock
• Solid rock
• Molten metal
• Solid metal

Which is the hottest part of the Earth?

• The core
• The mantle
• The crust
• The Asthenosphere

Roughly how long ago did Pangaea break apart?

• 2 million years
• 20 million years
• 200 million years
• 2000 million years

What are the features of Earth's crust?

• made of iron and nickel, there are two layers, a liquid outer and solid inner
• made of hot but solid rock
• layer of solid rock including dry land and ocean floor.

What are the features of Earth's core?

• made of iron and nickel, there are two layers, a liquid outer and solid inner
• made of hot but solid rock
• layer of solid rock including dry land and ocean floor.

Seismic (pronounced size-mik) waves are produced by what? 

• ocean currents
• wind
• air pressure
• earthquakes

Both continental drift and plate tectonics

• are theories that explain how Earth's plates formed

• are processes that cause convection in the asthenosphere

• help explain how Earth's surface has changed over time

• are used to explain weather patterns

What does the theory of plate tectonics predict about the locations of earthquakes and volcanic eruptions?

• they are evenly distributed

• they occur mostly on the ocean floow

• the occur mostly on the continents

• they occur mostly at plate boundaries