Download Earthquakes - Cobb Learning

Earthquakes
Pangea
• A supercontinent from
around 300 million years
ago.
• This is a theory that
scientists can’t prove but
they have lots of evidence
Evidence

Evidence examples:
Continents fit
together like a
puzzle. The same
fossils have been
found on different
continents.
Are earthquakes constructive?
• Earthquakes can form mountains and other landforms
Are Earthquakes Destructive?
• Earthquakes can destroy the land and bring buildings
tumbling down.
• Earthquakes can cause volcanoes to erupt and tsunamis
to happen
What is an Earthquake?
• Earthquakes are the sudden
release of energy as the Earth’s
plates move.
• http://video.nationalgeographic.
com/video/inside-earthquake
• http://video.nationalgeographic.
com/video/news/wildchronicles/panda-quakewcvin?source=relatedvideo
What is an Earthquake?
• An earthquake often happens near a fault which is a
break in the Earth’s crust.
• Earthquakes magnitude are measured using a Richter
Scale. 1-10
Tsunamis
• Earthquakes can cause tsunamis to happen.
• Tsunamis are a series of enormous waves created by an
underwater disturbance.
• Brainpop
Types of plates video-
http://youtu.be/dkELENdZukI
Divergent boundary- occurs when two plates move apart
(divide)
Convergent boundary- occurs when two plates are
pushed together (collide)
Transform boundary- occurs when two plates slide
against each other