Oceanic and Continental Crust

Multiple Choice

Which of the following is NOT a plate boundary?

• Convergent

• Convection

• Divergent

• Transform

Match

Match the following

• • thicker, less dense, forms landmasses, composed mostly of granite, generally older than oceanic crust

• thinner, more dense, located under oceans and seas, composed mostly of basalt, generally younger than continental crust

• Boundary where two tectonic plates meet

Continental crust

Oceanic crust

Plate boundary

• Continental crust

• Oceanic crust

• Plate boundary

Match

Match the following

• Mountains formed here. Example: Himalayas

• Volcanos formed here. Example:

  Andes Mountains

• Volcanic Island Arcs formed here. Example: Aleutian Islands Arc

Continent – Continent

Continent – Ocean

Ocean - Ocean

• Continent – Continent

• Continent – Ocean

• Ocean - Ocean

  
  

Match

Match the following

• Rift valleys formed here. Example: Great Rift Valley

• Mid-ocean ridges formed here. Example: Mid-Atlantic Ridge

Continent – Continent

Ocean - Ocean

Mr. Young's dog

• Continent – Continent

• Ocean - Ocean

• Mr. Young's dog

Multiple Choice

What natural disaster happens at transform boundaries?

• Cyclones

• Floods

• Hurricanes

• Earthquakes

Multiple Choice

At the Mid-Atlantic ridge the ocean seafloor is slowly spreading. Which rocks near the boundary are the youngest?

• The rocks 5 feet away from the ridge

• The rocks 10 feet away from the ridge

• The rocks 15 feet away from the ridge

• The rocks 75 feet away from the ridge