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Learn the new words!

_____ is the grey powder that stays after something has burned.

ash

A _____ is the opening of a volcano.

crater

To _____ means to explode.

erupt

_____ is something that is like air.

gas

To _____ means to become hard.

harden

An _____ is a piece of land that has water all around it.

island

_____ is magma that comes out of a crater.

lava

_____ is hot, melted rock inside the Earth.

magma

_____ means does not happen a lot.

rarely

A _____ is a mountain that can erupt.

volcano

Now, do the test!

Exercise