03. DO ALL VOLCANOES ERUPT ?
Some volcanoes are always (1) ______. They are called active volcanoes. Mount Etna in
Italy is an active (2) ______.
Some volcanoes have not erupted since prehistoric times. These are (3) ______ extinct
volcanoes. Most of the Hawaiian Islands are extinct volcanoes. These volcanoes (4) ______ have a
hot spot under them. They (5) ______erupt anymore.
Some volcanoes have not erupted for a long time, (6) ______ they could erupt again. These are
called dormant volcanoes.
Scientists try to figure out (7) ______ volcanoes will erupt. Studying volcanoes is hard and
dangerous work. Scientists drill into volcanoes. They (8) ______ maps of the inside of the
volcanoes. They use satellites to study volcanoes (9) ______ space. Scientists have been able to
predict a few eruptions. But it is not (10) ______ to tell what a volcano might do.
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