Earth's crust is made up of ____________ & ____________
What is ocean and continents.
200
What is the thickest layer of the earth?
What is the mantle
200
A scientists who studies earthquakes are called
What are semismologist
200
A mountain formed by lava is a
What is volcano
200
A rocky tube where magma rises toward the surface of earth is a
What is a vent.
200
Earthquake scale that measures the energy released by a quake is the
What is richter scale
300
The mantle is made up of what type of rock?
What is semi-solid
300
The ___________ scale measures the damage done by an earthquake.
What is Mercallie Scale.
300
Most volcanoes from along
What is plate edges
300
A seismograph is
What is an instrument that records earthquakes.
300
Many of the volcanoes in Hawaii are
What are shield volcanoes
400
What are the four layers of Earth?
What are the inner core, outer core, mantle and crust.
400
The fault that runs through California is the
What is San Andres Fault
400
Name the three types of volcanoes
What are shield, composite and shield volcanoes
400
A scientist that studies volcanoes is a
What is a volcanologist.
400
A 2.0 earthquake on the richter scale would cause
what is pictures or lights to move.
500
Explain how the inner core are alike and different
They are both made up of mostly nickle and iron. The inner core is solid and the outer core is liquid.
500
An earthquake is caused by
What is a build up and sudden release of energy.
500
How are lava and magma alike and different
Both lava and magma are melted rock. Lava is melted rock outside the earth and magma is melted rock inside the earth.
500
Explain the difference between the focus and the epicenter.
What is the focus is the point underground where the movement of an earthquake takes place. Epicenter is the point on the surface of the earth right above the focus.
500
Give two ways that volcanoes are good for the earth.
What are: 1 - the build land
2 - add nutrients to the soil