Earth Shaking Facts
This is a sudden shaking of the ground caused by the movement of rock underground.
What is an earthquake?
Earth’s lithosphere is broken up into large pieces called these.
What are tectonic plates?
Volcanoes are found both on land and here.
What is underwater?
This is made of a mixture of flowing lava and fallen rock. It can grow to be tall.
What is a composite volcano?
These are volcanoes that have erupted in the last
10,000 years.
What are active volcanoes?
The Earth has this many layers.
What is five?
This is a crack in a body of rock that the Earth can move along.
What is a fault?
This is an opening in the Earth’s surface through which magma and gasses or only gasses erupt.
What is a volcano?
These are more explosive and are made from lava, rocks, and ash that have been thrown in the air during its eruption. It has steep sides, like a cone, but are not very tall.
What are cinder cone volcanoes?
Sometimes, earthquakes can cause volcanoes to do this.
What is erupt?
This is the layer of the Earth that we live on.
What is the crust?
When tectonic plates collide or slide past one another, they can become this (which builds up stress and pressure).
What is stuck?
Rock is melted in the mantle where it is called this.
What is magma?
This is a volcano that is not very explosive. Each layer of lava flows out and cools. It has a gentle, rounded shape.
What is a shield volcano?
These are volcanoes that will never erupt again.
What are extinct volcanoes?
This is the two hard upper layers of the Earth combined.
What is the lithosphere?
Tectonic plates are always doing this.
What is moving?
This is melted rock.
What is magma?
This occurs when hot gasses or lava are suddenly released from a volcano.
What is an eruption?
True or False? Volcanoes are found on all continents (except Antarctica).
What is false.
They are found on ALL continents- even Antarctica!
Solid or liquid? The inner most layer of the Earth is this.
What is solid?
Underwater earthquakes can cause very powerful waves called these.
What are tsunamis?
When magma comes through holes or cracks in the crust, it is called this.
What is lava?
Magma that contains more gas is more this.
What is explosive?
This type of volcano may not have erupted recently, but are expected to again someday.
What are dormant volcanoes?