Platetectonics

What was the name given to all the continents when they were joined as one super continent? 

• Supreme Continent
• Eurasia
• Plate tectonics
• Pangaea

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

• Continental crust
• Oceanic crust
• Asthenosphere
• Lithosphere

The mantle of Earth is made partly of magma. When magma rises and sinks, this is called ______________. 

• a conduction current
• a hot spot
• a volcanic eruption
• a convection current

Which type of plate boundary occurs at Y?

• divergent
• convergent
• transform
• sea floor spreading

What is happening at Z?

• mid-ocean ridge
• subduction zone
• transform boundary
• sea floor spreading

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

What landform is created when two continental plates collide? 

• Ocean Basin
• Volcano
• Canyon
• Mountain Range 

This begins at the mid-ocean ridge, new molten material from inside Earth rises, erupts, cools, and hardens to form a solid strip of rock.

• Ocean ridge
• Sea-floor spreading
• Magnetic strip
• Molten