What is a graphic representation of the passage of time as a line.
100
How often do volcanoes erupt?
What is about depends on volcanoes.
100
What is the shaking that results from the movement of rock beneath Earth’s surface ?
What is earthquake.
100
What Layer of the earth do we live on?
What is the crust.
100
What are the main types of boundaries?
What is convergent, divergent, transform
200
When was Mount St. Helen's major eruption?
What is May 18th 1980.
200
What are volcanoes
What is a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
200
What are earthquakes?
What is a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
200
Name the two main types of the crust?
What is continental and oceanic
200
True or false the Oceanic boundary is the thickest?
What is False.
300
When did Mount Vesuvius first erupt?
What is 79 A.D.
300
Why do volcanoes erupt?
What is tectonic plates move etc.
300
Why do earthquakes erupt?
What is tectonic plates move.
300
What is the thickest layer of the Earth?
What is the mantle.
300
What boundaries move away from each other?
What is divergent.
400
When did scientist believe that dinosaurs began to go extinct according to there calender?
What is 65 million years ago.
400
What are cinders, ash and bombs?
What is Pyroclastic material.
400
What is a break in Earth’s crust where slabs of rock slip past each other?
What is fault.
400
How thick is the mantle?
What is 1,800 miles.
400
What kind of boundary creates mountains? Describe that boundary?
What is A convergent: buckling boundary makes mountains; that is when two continental plates come together and they both push up.
500
How long did dinosaurs live?
What is 165 million years ago
500
What is the Hawaiian name for the two types of lavacaused by a quiet eruption ?
What is Pahoehoe and aa.
500
What is the measurement of an earthquake’s strength based on seismic waves and movement along faults?
What is magnitude.
500
What is the temperature of the inner core?
What is 13,000.
500
Explain how new sea floor/crust is created.?
What is New sea floor/crust is created at a divergent plate boundary where two plates pull apart. When the plates pull apart, magma from the mantle comes up, cools, and hardens into rock/crust.