Types of Volcanoes
This volcano looks like a sharp tall mountain peak.
What is a strato-volcano.
This layer is the thinnest of them all. If you compared the earth to an apple, it would only be as thick as the apple's peel or skin. It is the layer that we stand on.
What is the crust.
These move about as fast as your finger nails growing.
What are the plates of the earth.
Volcanoes are found on every continent EXCEPT for this one.
What is Australia.
This liquid or molten rock comes from beneath the earth's surface.
What is magma.
This volcano looks like a rounded dome.
What is a shield volcano.
This layer is the second deepest layer and is where magma comes from.
What is the mantle.
This process describes sections of the earth moving toward and away from each other.
What is plate tectonics.
We call a person who studies volcanoes this name.
What is a volcanologist.
This is what magma is called when it is above the ground.
What is lava.
This volcano forms underwater.
What are mid-ocean ridges.
This layer is the third deepest layer.
What is the outer core.
This area of volcanoes traces the boundaries between several tectonic plates.
What is the ring of fire.
This appears when a volcano erupts and spews lava, molten rock and gases into the air.
What is an ash cloud.
When magma finds a path to the earth's surface through a volcanic pipe or vent it results in this type of eruption.
What is a volcanic eruption.
When a volcano is no longer active, we give it this name.
What is dormant or non-active.
This layer is the deepest layer and is incredibly hot.
What is the inner core.
The percentage of the world's active and dormant or non-active volcanoes that are found in the ring of fire
What is more than 75%.
This type of ash distributes nutrients to soil around the earth to help crops grow.
What is volcanic ash.
We call a hollowed-out area produced by volcanic activity this term.
What is a crater.
This type of volcano is found near the boundaries of the tectonic plates that form the earth's crust and is the result of volcanic activity on the seabed. Where two plates pull apart, lava erupts to form an undersea ridge. The layers of lava build up until a ridge breaks the sea's surface to form an island.
What are mid-ocean ridges.
This layer includes the ground we walk on as well as the ocean floor.
What is the crust.
This ground-shaking event might occur when two of the earth's plates move away from each other.
What is an earthquake.
This is the destructive mass of very hot ash, lava fragments and gases ejected explosively from a volcano and typically flowing down the mountain at very high speed.
What is pyroclastic flow.
This is formed by a major eruption leading to the collapse of the mouth of the volcano.
What is a caldera.