Theory of Continental Drift
Continental Drift is all about what?
Continents moving
True or False, The Earth's surface is made up of interlocking plates.
True
Where in the Earth does convection take place?
Mantle
Most volcanoes and Earthquakes are located where on plates?
Edges of Plates
True or False Plate movement does NOT cause different features to happen on Earth.
False
Who found evidence that the world was once a giant super continent called Pangea?
Alfred Wegner
Sometimes plate movement causes two continents to collide. Which processes are most likely to occur as a result of this collision?
Earthquakes
Volcanoes
Mountains
Many of the worlds active volcanoes lie in a region circling the Pacific Ocean.
The Ring of Fire
What direction do divergent boundaries move in?
Away from each other.
When plates move away from each other what features are created?
Volcanoes, Ridges, Earthquakes
What piece of evidence suggested the continents looked like puzzle pieces?
Fit of the Continents.
Similar fossils located around the world
What is one similarity between the Theory of Plate Tectonics and the Theory of Continental Drift?
They both involve movement.
The closer to the centre of the Earth:
the higher the temperature and pressure
transform
What is a deep cut in the ocean floor that is formed when two plates come together?
Trench
How did animal fossils support the idea of continental drift?
Animal fossils were found on two different continents separated by oceans. These animals could not swim therefore the continents were once together.
What evidence is used to support the Theory of Plate Tectonics?
Age of the Ocean Floor
Hot material is _______ dense, while cold material is _______dense.
There are two types of crusts. Oceanic and Continental. Which crust is less dense?
Continental
What feature is created at every plate boundary?
Earthquakes
Coal deposits were found suggesting plants were found in this once plant covered location. What is the name of this location?
Antarctica
What are two major differences between the Theory of Plate Tectonics, and the Theory of Continental Drift?
1. Continental Drift includes an explanation of how the plates move.
2. Plate tectonics involves plates moving.
The energy released during an earthquake causes the ground to shake. Recall what these movements are called.
a) Shivers
b) Seizures
c) Tremors
d) Seismographs
C
When one plate sinks under the other this is known as
Subduction
Tommy discovered a new place on Earth. At this location there are Volcanoes, Mountains, Earthquakes, and trenches. What type of plate boundary did Tommy discover?