Download volcanic eruptions

Reflection
Questions (5
possible test
questions):
Name________________________________________ Date_________________ Period______
VOLCANIC ERUPTIONS
INSIDE A VOLCANO
• Magma Chamber- A ____________________ of collected __________________ beneath a
volcano.
•
Pipe- A long tube in the ________________ that connects the magma chamber to Earth’s
_________________.
•
Vent- An ____________________ where gas and ____________________ rock leave the volcano.
•
Lava Flow- The area covered by _________________ as it pours out of a _________________.
•
Crater- A ________________ shaped area that may form at the top of a volcano around the
___________________________.
•
Pyroclastic Flow - Occurs when an ______________________ eruption hurls out a mixture of hot
_________________, ash, ____________________, and bombs.
VOLCANIC ERUPTIONS
When a _______________________ erupts, the _______________________ of the expanding gases
pushes magma from the magma ___________________________ through the __________________
until it flows or explodes out of the _________________.
•
•
Quiet
– A volcano erupts _______________________ if its magma is ________________ in silica.
– ____________________ magma that flows easily
•
Explosive
– A volcano erupts ____________________________ if the magma is ____________ in
silica.
– Thick and ________________________ magma.
– Clogs volcano’s pipe and creates more pressure.
VOLCANO LIFE CYCLES
Active: Also known as “__________________”… A volcano that is ____________________ or
showing signs that it will erupt in the near ________________________.
•
Dormant: Also known as “___________________________”…A volcano that is not currently
_________________, but may become active in the future.
•
Extinct: Also known as “_________________”… A volcano that is unlikely to __________________
again.
Summary: 5 sentences
VOLCANO DIAGRAM
(labeled with all parts)