Alfred Wegener
What did Alfred Wegener discover?
Continental Drift.
What is the very middle part of the Earth called?
Earth's core.
Can earthquakes cause tons of destruction and even death?
Yes
What are the two main types of seismic waves?
Body Waves Surface waves.
Is there such thing as a divergent boundary?
Yes there is.
What was Alfred Wegener's job title?
Scientist, Astronomer, or Meteorologist (any of the three count if said)
What is the highest layer of the Earth?
The crust.
What is the point underground where an earthquake starts.
The Focus
True or False? Surface waves can only move along the earths surface like ripples on water.
True.
What are the three types of plate boundaries?
convergent divergent and transform boundaries.
True or False? Alfred Wegener's idea of continental drift was rejected by most scientists when he proposed it.
True.
How many layers of Earth are there?
4 layers
What is the point on land directly above the focus.
Epicenter
Where do seismic waves come from? (at least 2)
Volcanoes, landslides, earthquakes, or explosions
What motion does a transform boundary make?
Sliding sideways past each other.
When did Alfred Wegener discover continental drift?
In 1912.
Is the core of the earth solid or liquid or both?
Solid.
What is the highest ever earthquake magnitude?
magnitude 9.5
What is the most destructive seismic wave?
Surface waves.
What motion does a convergent boundary have?
The 2 plates collide into each other.
When was Alfred Wegener born?
November 1, 1880
What is the density of the upper mantle?
3.4 g/cm 3
Can earthquakes cause a tsunami to happen or do they just cause small waves in the ocean?
Can cause a tsunami to happen.
Only solid rock.
What motion does a divergent boundary have?
The 2 plates are moving away from each other.