WorksheetsPlate Motion Chapter 3
Total questions: 15
Worksheet time: 17mins
At divergent plate boundaries ...
Ocean water fills the gap as the plates move away from each other
A gaping hole forms where we can look into the center of the Earth as the plates move away from each other
The plates move together and one sinks under the other, forming a trench
Soft, solid rock from the mantle rises as the plates move away from each other. Then it hardens, adding hard, solid rock to the edges of both plates
How are earthquakes and plate motion related?
Plate motion causes earthquakes
Earthquakes cause plate motion
Earthquakes have nothing to do with plate motion
Earthquake occur in the middle of the plates
A trench is...
A long, deep indentation in the ocean floor formed when two plates move together
An extinct reptile that lived about 300 million years ago
An underwater mountain range formed at divergent boundaries
the layer of soft, solid rock underneath Earth's plates
What happens to a plate that sinks underneath another plate?
continuously sinks into magma until the plate is gone
the plate comes back up in another area
nothing happens
it melts and becomes part of the mantle
True or False. A mid-ocean ridge is something formed underwater when two plates move apart.
True
False
What did the Alfred Wegner use as evidence to support his idea that the continents were once connected?
Fossils, similar rocks, glaciers, live animals, opinions
Fossils, live animals, they fit like a puzzle, guessing, rock types
Similar rocks, glaciers, live animals, they fit like a puzzle
Similar rocks, they fit like a puzzle, fossils, patterns of landforms
How did Alfred Wegener know about Continental drift
Fossil of the same plants and animals were found on different continents.
Rocks and earthquakes are the same on all continents.
Maps showed him what the continents looked like millions of years ago.
The types of water and buildings found on North America were similar to those found in Europe, but not Africa.
What happens to the mantle as DIVERGENT plates move?
It sinks into the plate and destroys it.
Nothing, only the plates are moving.
It rises and adds rock to the edges of the plate.
It destroys part of the plate that sinks into the mantle.
In which time period are we currently living?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Which era was the longest, taking up 88% of geologic time?
Precambrian
Paleozoic
Mesozoic
Cenozoic
