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7th Grade Science DCA 4

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  • Name one negative impact humans have on oceans.
    Pollution/overfishing/habitat destruction (any one)
  • Name one positive action humans can do to help oceans.
    Reduce plastic/cleanups/recycle/conserve (any one)
  • Subduction happens at what type of boundary?
    Convergent boundary
  • What is this process called?
    Subduction
  • Plates move away from each other at what boundary?
    Divergent boundary
  • At which plate boundary does seafloor spreading happen?
    Divergent boundary
  • Why can runoff be harmful?
    It carries pollutants into waterways
  • Trench is associated with which plate boundary?
    Convergent boundary
  • True or False: Humans can control hurricanes.
    False
  • Shown here is a Watershed model. What is the process of water in any form is falling down from the clouds called?
    Precipitation
  • What are 2 landforms created by the following plate boundary?
    Mountains, trenches, island arcs, volcanic mountains
  • What is the oily rainbow sheen in a puddle after rain often from?
    Oil/gas from roads (runoff)
  • Shown here is a Watershed model. What is the process of water turning into gas?
    Evaporation
  • What heat transfer causes the tectonic plates to move?
    Convection
  • What is percolation?
    Water soaking down through soil/rock
  • What landform is created through this process?
    Trench
  • San Andreas Fault Line is an example of which plate boundary?
    Transform
  • Name one way humans depend on the ocean.
    Food/oxygen/jobs/transportation/recreation/products (any one)
  • Plates slide past each other at what boundary?
    Transform boundary
  • What is runoff?
    Water flowing over land into storm drains/streams/rivers/oceans. Picks up pollutants on the way down.
  • Plates crash into each other at what boundary?
    Convergent boundary
  • What does this landform create or cause?
    Fault lines or Earthquakes
  • Andes Mountains are volcanic mountains off the coast of South America. These mountains are an example of which plate boundary?
    Convergent
  • Which term means “water flowing over land”?: runoff or percolation
    Runoff
  • Does runoff travel uphill or downhill?
    Downhill
  • True or False: Convergent boundaries can create trenches.
    True
  • What plate boundary happens when two plates move apart?
    Divergent boundary
  • True or False: Divergent boundaries can create mid-ocean ridges.
    True
  • Describe how convection currents move in the Mantle.
    Hotter magma rises and cooler magma sinks.
  • What is a watershed?
    An area of land where water drains to the same place
  • What is a landform that is created by the following plate boundary?
    Rift valley or Mid Ocean Ridge
  • New crust can be formed through what process?
    Seafloor Spreading/Mid-Ocean Ridge
  • What is seafloor spreading?
    New ocean crust forming at mid-ocean ridges
  • What plate boundary happens when two plates collide?
    Convergent boundary
  • True or False: Humans can control how clean water is.
    True
  • Rift valley is associated with which plate boundary?
    Divergent boundary
  • Mid-Atlantic Ridge is an example of which plate boundary?
    Divergent
  • What plate boundary happens when two plates slide past each other?
    Transform boundary
  • Volcanic Mountains are associated with which plate boundary?
    Convergent boundary
  • Mid-ocean ridge is associated with which plate boundary?
    Divergent boundary
  • Mountain range (plates collide) is associated with which plate boundary?
    Convergent boundary
  • A factory dumps waste through a pipe into a river. Point source or nonpoint source?
    Point source
  • Shown here is a Watershed model. What is the process called when evaporated water turns into clouds?
    Condensation
  • Island arc (chain of volcanic islands) is associated with which plate boundary?
    Convergent boundary
  • Fault line is associated with which plate boundary?
    Transform boundary
  • True or False: Transform boundaries usually create volcanoes.
    False
  • Shown here is a Watershed model. What is the process of water flowing down the hill and collecting pollutants on the way called?
    Runoff
  • Oil and trash washing into storm drains after rain. Point source or nonpoint source?
    Nonpoint source
  • Which term means “water soaking into the ground”?: runoff or percolation
    Percolation
  • Convection occurs in which part of the Earth to move the tectonic plates?
    Mantle
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