A sudden movement that causes Earth's crust to shake is called ...
An earthquake
100
The movement and rubbing together of tectonic plates is responsible for causing this phenomena.
Earthquakes
100
Why is a cone volcano shaped like it is?
It has thick lava so when it flows out of a crack in the Earths crust, it piles up into a cone shape as it hardens.
100
When building a structure, what is the strongest/sturdiest shape; a square, a triangle, or a rectangle?
A triangle
200
A shield Volcano is short and wide. Why does it have this shape?
A shield volcano has thin lava, when it flows from a crack in the Earths crust it spreads out creating a wide volcano when it cools.
200
Earth’s crust and upper mantle together are divided in large puzzle-like pieces called ....
tectonic plates
200
What is left behind at the top of a cone volcano after it erupts?
a crater
200
An eruption that may darken the sky with ash would come from this kind of volcano.
A cone volcano
200
Name 3 types of damage resulting from a volcano, their cause, and the type of volcano responsible for the damage.
Example: Something burning or being covered in hot ash. This is caused by a cone volcano shooting lots of hot ash into the air
300
Name 2 rapid changes to Earth's surface that may come form a volcano eruption
Land covered in hardening lava, Forest near volcano destroyed, everything covered in ash, etc.
300
The point on Earth’s surface that is directly above the focus (center of the earthquake) is called the ....
Epicenter
300
Explain why cone volcanoes explode.
They have thick lava that hardens at the top and prevents air bubbles from escaping. These air bubbles build up over time and create pressure. When the pressure is too great to contain, the volcano will explode.
300
A volcano is formed when......
magma is forced upward through the Earth’s crust. The magma will then cool and harden into a volcano.
300
What is the difference between a dormant volcano and an extinct volcano.
Dormant volcanoes may not have erupted for a long time, but scientists think they will erupt again someday.
400
What is an extinct volcano?
A volcano that is not active, and that scientists do not think will erupt again.
400
A break or crack in rocks where the Earth's crust can move is called .....
A fault
400
The point around which the most damage will be cause by an Earthquake is called ....