Show:
True/False
Definition/Vocab.
Earthquakes/Earth
Volcanoes
Challenge 0.o
100
Stress IS the cause of earthquakes, true or false?
TRUE, stress causes earthquakes.
100
What is Pangaea?
Pangaea is the name of the supercontinent from 200 million years ago.
100
Is the Earth's surface always changing?
Yes, the Earth's surface is always changing.
100
What creates new ocean crust?
Magma creates new ocean crust.
100
What number on the earthquake scale is the worst?
10. Means an earthquake caused very severe damage.
200
OCEANS are destroyed at deep-sea trenches, true or false?
FALSE, OCEANIC CRUST is destroyed at deep-sea trenches.
200
What is CONTINENTAL DRIFT?
CONTINENTAL DRIFT is the movement of the Earth's continents.
200
Has a 10 point earthquake been recorded before?
A 10 point earthquake has never been recorded before.
200
Does carmel have a higher VISCOSITY than water?
Yes, carmel has a higher VISCOSITY than water.
200
What can earthquakes cause?
Destroyed homes, boats in wrong places, power outage, tsunami's, ect.
300
Stress only relate to people. True or false?
False! Earthquakes are caused by stress.
300
What are PLATE TECTONICS?
PLATE TECTONICS explain the large-scale motions of Earth's lithosphere.
300
How many earthquakes occur (happen) each year?
More than ONE MILLION earthquakes occur each year.
300
What is the "RING OF FIRE?"
The "RING OF FIRE" is where 75% of the volcanoes are.
300
Are volcanoes always slow moving when they erupt?
No, sometimes when a volcano erupts the magma can move fast or slow.
400
In the last 10,000 years more than 1,500 volcanoes have erupted. True or false?
True!
400
What is SEAFLOOR spreading?
SEAFLOOR spreading is what explains the new ocean crust that forms at ridges.
400
What was the Richter scale SCORE for the Northridge earthquake in 1994.
6.7 was the score for the earthquake in 1994.
400
What helps create magma?
Water, pressure and temperature create magma.
400

What is the name of the largest volcano in the soalr system?

Olympic Mons

500
Two types of evidence that support the CONTINENTAL DRIFT theory are fossils and rock types. True or false?
True!
500
What is VISCOSITY?
VISCOSITY is the internal resistance to flow.
500
What do PLATE TECTONICS explain?
PLATE TECTONICS explain the large-scale motions of the Earth's lithosphere.
500
The volcanic islands of Hawaii are migrating at what rate?
Hawaii's volcanic islands are migrating northwest at a rate of 8-9cm per year.
500

What is the radius of the Earth?

6371Km