volcanoes Flashcards
1
Q
when does a volcano form
A
when molten magma forces its way to the Earth’s surface
2
Q
through what does molten magma force it’s way through
A
through a narrow tube called a vent.
3
Q
through what does molten magma reach the surface
A
through a small opening called a crater.
4
Q
what is magma called once it reaches the surface
A
lava
5
Q
what do Successive lava flows eventually create
A
a cone-shaped mountain called a volcano.
6
Q
where is magma stored
A
underground in a magma chamber.
7
Q
in what state are the rocks
A
molten
8
Q
what can temperatures reach
A
1,000 degrees Celsius
9
Q
what erupts during an eruption
A
hot ash, volcanic rock bombs, dust and lava
10
Q
what are the things that erupt from a volcano called
A
pyroclastic material
11
Q
what deos pyro mean
A
fire
