Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz
 
Plate Tectonics

Practice Test
      
  1.Who first proposed the theory of continental drift?  
  a.   Galileo Galilee  
  b.   Albert Einstein  
  c.   Harry Hess  
  d.   Alfred Wegener  
  Hint    
      
  2.What is the continental drift theory?  
  a.   the belief that continents are moving slowly together from their current locations on Earth  
  b.   the belief that continents have moved slowly apart to their current locations on Earth  
  c.   the belief that continents have always been located at their current locations on Earth  
  d.   the belief that continents have quickly moved apart to their current locations on Earth  
  Hint    
      
  3.How does the Mesosaurus fossil evidence support the continental drift theory?  
  a.   The Mesosaurus fossil evidence does not support the continental drift theory. It proves it wrong.  
  b.   because the Mesosaurus lived millions of years ago, when scientists believe the continents began to drift  
  c.   because it's unlikely that the Mesosaurus could swim between continents  
  d.   because it's unlikely that the Mesosaurus existed on both continents.  
  Hint    
      
  4.What is the lithosphere?  
  a.   large, flat stones sitting on top of malleable magma  
  b.   the plates that make up the crust  
  c.   the plates that make up the crust and the upper part of the mantle  
  d.   the upper part of the mantle  
  Hint    
      
  5.Why was the discovery of no rocks older than 2 billion years old on the ocean floor so important?  
  a.   This evidence proved that new seafloor features are constantly being added due to seafloor spreading.  
  b.   This evidence proved that new seafloor features are constantly being added due to continental drift.  
  c.   This evidence proved that the rocks on the seafloor were older than rocks on continents.  
  d.   This evidence proved that new seafloor features are constantly being added due to reversals of Earth's magnetic field.  
  Hint    
      
  6.What happens when an oceanic plate converges with a continental plate?  
  a.   The less dense oceanic plate slides under the denser continental plate.  
  b.   The denser oceanic plate slides on top of the less dense continental plate.  
  c.   The denser oceanic plate slides under the less dense continental plate.  
  d.   The less dense oceanic plate slides past the denser continental plate.  
  Hint    
      
  7.What kind of movement created the Himalaya Mountains?  
  a.   erosion  
  b.   divergent boundaries  
  c.   reversals of Earth's magnetic field  
  d.   compressional forces  
  Hint    
      
  8.What is the plate tectonic theory?  
  a.   the belief that Earth's crust and upper mantle is broken into sections  
  b.   the belief that continents have moved slowly apart to their current locations on Earth  
  c.   the belief that Earth is broken into sections that fit together into one sphere  
  d.   the belief that hot, less dense material is forced up through Earth's crust through mid-ocean ridges  
  Hint    
      
  9.What is a transform boundary?  
  a.   A transform boundary is when two plates move toward each other.  
  b.   A transform boundary is when two plates pull away from each other.  
  c.   A transform boundary is when two plates collide.  
  d.   A transform boundary is when two plates slide past one another.  
  Hint    
      
  10.What tool does a scientist use to detect magnetic fields?  
  a.   a magnetometer  
  b.   a fieldometer  
  c.   a magnetogram  
  d.   a thermometer  
  Hint    
      
  11.What does plate tectonics cause?  
  a.   all answers are correct  
  b.   causes volcanoes  
  c.   forms ocean basins  
  d.   forms mountains  
  Hint    
      
  12.How can crust disappear at the edge of a boundary?  
  a.   because new crust is being added to the other edge of the boundary  
  b.   It is too dense and is sinking into Earth.  
  c.   Gravity is pulling it down.  
  d.   The other edge of the boundary is being pulled into Earth's core.  
  Hint    
      
  13.A divergent boundary is a boundary between two plates that __________.  
  a.   move toward each other  
  b.   slide along each other  
  c.   converge  
  d.   move away from each other  
  Hint    
      
  14.What is the difference between normal faults and rift valleys?  
  a.   Rift valleys are formed from normal faults.  
  b.   Rift valley formation has nothing to do with normal faults.  
  c.   Normal faults occur in the northern hemisphere, but rift valleys only occur in the southern hemisphere.  
  d.   Rift valleys sometimes occur near normal faults, but their formation is not related to these faults.  
  Hint    
      
  15.How can Earth's plates move?  
  a.   They can collide, pull apart, or slide against each other.  
  b.   They only can move toward each other.  
  c.   They only converge or diverge.  
  d.   They only collide or slide along each other.  
  Hint    
      
  16.Do two colliding continental plates always cause volcanoes?  
  a.   Yes, subduction always occurs when oceanic plates collide.  
  b.   No, usually no subduction occurs when continental plates collide.  
  c.   No, earthquakes always occur when two continental plates collide.  
  d.   Yes, subduction always occurs when continental plates collide.  
  Hint    
      
  17.What do scientists believe is the force behind the plate tectonics theory?  
  a.   the Sun's gravity  
  b.   the movement of the planets  
  c.   gravity slab pull  
  d.   convection currents  
  Hint    
      
  18.What evidence proved that South America, Africa, India, and Australia were once covered by glaciers?  
  a.   leftover portions of glaciers  
  b.   glacial deposits and rock surfaces scarred by glaciers  
  c.   enormous valleys formed by glaciers  
  d.   cold climates  
  Hint    
      
  19.How do scientists use sound waves to figure out the shape of the ocean floor?  
  a.   The less time it takes a sound wave to return to the ship, the deeper the water is.  
  b.   The longer it takes a sound wave to return to the ship, the colder the water is.  
  c.   The longer it takes a sound wave to return to the ship, the more shallow the water is.  
  d.   The longer it takes a sound wave to return to the ship, the deeper the water is.  
  Hint    
      
  20.What clue supported the continental drift theory?  
  a.   Similar rock structures have been found on different continents.  
  b.   a puzzle-like fit of all the continents  
  c.   Fossils of animals have been found on continents separated by oceans.  
  d.   all answers are correct  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies