Arrange the events to describe how a volcano forms and erupts.The plates move constantly.
Molten magma flowing beneath
Earth's surface finds its way
out of the gaps.
The mound cools down over
thousands of years to form
a mountain.
The heap grows bigger and bigger
as the volcano erupts, creating a
huge mound.
At times, the plates move away
from each other, creating gaps.
Earth's crust is made up of huge
slabs called plates.
Magma comes out of Earth, creating
a heap of lava, ash, and rocks.