Share 7th Grade Science DCA 4
Save to Folder
What plate boundary happens when two plates move apart?
Divergent boundary
What plate boundary happens when two plates collide?
Convergent boundary
What plate boundary happens when two plates slide past each other?
Transform boundary
What is seafloor spreading?
New ocean crust forming at mid-ocean ridges
Convection occurs in which part of the Earth to move the tectonic plates?
Mantle
At which plate boundary does seafloor spreading happen?
Divergent boundary
Describe how convection currents move in the Mantle.
Hotter magma rises and cooler magma sinks.
What heat transfer causes the tectonic plates to move?
Convection
True or False: Transform boundaries usually create volcanoes.
False
True or False: Convergent boundaries can create trenches.
True
True or False: Divergent boundaries can create mid-ocean ridges.
True
What is runoff?
Water flowing over land into storm drains/streams/rivers/oceans. Picks up pollutants on the way down.
Why can runoff be harmful?
It carries pollutants into waterways
What is a watershed?
An area of land where water drains to the same place
Does runoff travel uphill or downhill?
Downhill
What is percolation?
Water soaking down through soil/rock
