2. • The ring of fire is around the Pacific Ocean. In 1978 volcanologists
predicted that Mt. St. Helens would erupt in 1980. They were
right. Some people left but 57 people that did not leave got killed
by the blast.
3. • The layers of the earth are the core, the mantle, and the crust.
• The volcano Yasur, in Japan, has erupted 10-20 times every hour
for 800 years!
• A volcano is a break in the Earth’s crust.
4. • A volcano forms when magma from the Earth’s mantle shoots
though a break in the crust and reaches the surface.
• Today scientists who study volcanos are called volcanologists.
5. • Volcanologists study volcanoes in order to see when the next eruption happens
and to warn people before it erupts.
• Volcanologists work on volcanoes and walk across burning rocks and red HOT
FIERY lava to get close to it’s boiling interior.
