A mountain made from burned materials that may throw out hot rocks and lava (= hot liquid rock) from a hole in its top.
A volcano
When a volcano erupts lava, what are expelled from it? (ash and gas OR pigs and horses)
When a volcano erupts lava, ash and gas is expelled from it.
The hole at the top of the volcano is known as the volcanic _____. (dot / crater)
The hole at the top is known as the volcanic crater.
The word "volcano" comes from the world ‘Vulcan’ who was the Roman God of fire!
Yah, that's true!
What is called magma? (The liquid inside the volcano OR The liquid that is expelled from the volcano)
Volcanoes hold very hot liquid called magma.
What is called lava? (The liquid inside the volcano OR The liquid that is expelled from the volcano)
Once a volcano erupts, the magma will come out of the top of the volcano. After it has left the volcano, it is called lava.
Once the lava has cooled down it will turn into _____ .(solid rock OR solid wood)
Once the lava has cooled down it will turn into solid rock.
Lava is very, very hot! It can get up to 1,250° Celsius. (True OR False)
It's true! This makes volcanoes very dangerous and it is why they should be avoided.
There are few volcanoes, in fact, there are around 19 which are active. (True OR False)
False (There are lots of volcanoes, in fact, there are around 1,900 which are active.)
Volcanoes are often found at meeting points of “tectonic plates”.
True (These plates are pieces of the Earth’s surface that fit together just like a jigsaw puzzle.)
Volcanoes are classified as active, dormant or extinct.
True
Magma and lava are the same things!
False (Magma is the name given to hot liquid rock inside a volcano. Once it leaves the volcano, it’s known as lava.)
What are active volcanoes?
Active volcanoes have a recent history of eruptions; they are likely to erupt again.
What are dormant volcanoes?
Dormant volcanoes have not erupted for a very long time but may erupt at a future time.
What are extinct volcanoes?
Extinct volcanoes are not expected to erupt in the future, it’s unlikely to ever erupt again.
