A volcano is...
Volcano is really a .....
What is a mountain?
Volcanoes are formed when_______ from within the Earth's upper mantle works its way to the surface
What is magma?
Three main categories: active, _______, and extinct.
What is dormant?
The Earth's ______ is made up of huge slabs called plates, which fit together like a jigsaw puzzle
What is crust?
Plate tectonics is a interesting story of ____________drifting from place to place breaking apart, colliding, and grinding against each other
What are continents?
It opens down to a pool of ........
What is molten rock?
At the _______, it erupts to form lava flows and ash deposits.
What is surface?
An _______ volcano is one which has recently erupted and there is a possibility that it may erupt soon.
What is active?
The Earth's crust is made up of huge slabs called ________, which fit together like a jigsaw puzzle
What are plates?
The plate tectonic theory is supported by a wide range of evidence that considers the earth's crust and upper __________.
What is mantle?
When pressure builds up this happens.
What is erupts?
At the surface, it _______ to form lava flows and ash deposits.
What is erupts?
A _________ volcano is one which has not erupted in a long time but there is a possibility it can erupt in the future.
What is dormant?
These plates sometimes _______.
What is move?
The upper mantle is said to be composed of several large, thin, relatively_______plates that move relative to one another.
What is rigid?
These two things shoot up through the opening in the top.
What are gases and rocks?
At the surface, it erupts to form _______ flows and ash deposits.
What is lava?
An _______ volcano is one which has erupted thousands of years ago and there’s no possibility of eruption.
What is extinct?
The _________ causes earthquakes and volcanic eruptions near the edges of the plates.
What is friction?
The upper mantle is _________ of several large, thin, relatively rigid plates that move relative to one another.
What is composed?
Volcanic eruptions have been known to knock down entire.....
What are forests?
At the surface, it erupts to form lava flows and ________ deposits.
What is ash?
An extinct volcano is one which has erupted ____________ of years ago and there’s no possibility of eruption.
What is thousands?
The theory that explains this process is called _______ tectonics.
What is plate?
Sometimes the plates crash together, pull apart or sideswipe each other. When this happens, it commonly results in _________.
What are earthquakes?