Volcano Parts
What is the hole at the top of a volcano?
Crater
Which is hotter: lava or magma?
magma
Use “eruption” in a sentence.
Example: The eruption destroyed the town.
Volcanoes exist only on land.
False
What happens to magma when it reaches the surface?
becomes lava
What is the tube inside a volcano called?
Vent
What layer under the crust is extremely hot?
Mantle
Use “ash” in a sentence.
Example: The ash covered the sky.
Some volcanoes are extinct.
True
What causes magma to move upward?
pressure
What do we call the mountain-shaped part of a volcano?
Cone
What happens after an eruption?
lava cools → new land forms
Use “lava” in a sentence.
Use “lava” in a sentence.
Lava is colder than magma.
False
What effect does ash have on the sky?
makes it dark / blocks the sun
What do we call hot melted rock UNDER the Earth's surface?
Magma
What are the 3 main things that come out of a volcano?
Lava, ash, gas
Use “magma” in a sentence about the inside of Earth.
Example: Magma moves under the ground before an eruption.
A crater is found at the bottom of a volcano.
False
Why does a volcano explode suddenly?
too much pressure builds up
Name three parts of a volcano.
Possible answers: crater, vent, cone, magma chamber, ash cloud, lava, mantle
Why does magma move upward during an eruption?
Because of pressure
Use 3 volcano words in one sentence.
Example: The lava and ash came out during the eruption.
Ash is made of gas.
False (It’s tiny pieces of rock and dust.)
What effect does lava have on land?
destroys land or creates new land