Eruption Junction
A major belt of volcanoes that rim the Pacific Ocean, the coasts of North and South America, and those in Japan and the Philippines.
What is the Ring of Fire?
These form along the boundaries of Earth's plates.
What are volcanic belts?
Beneath the surface underneath the volcano, magma collects here.
What is the magma chamber?
The hole left when a volcano collapses.
What is a caldera?
Miss Dooley's dog's name.
Who is Dublin?
Geologists classify volcanic eruptions as these two categories.
What are quiet and explosive eruptions?
An area where material from deep within Earth's mantle rises through the crust and melts to form magma.
What is a hot spot?
A long tube that extends from Earth's crust up through the top of the volcano, connecting the magma chamber to Earth's surface.
What is the pipe?
A steep, cone-shaped hill or small mountain.
What is a cinder cone?
Miss Dooley's birth year.
When is 1999?
DAILY DOUBLE! Silica is a material found in magma that forms from these two elements.
What are oxygen and silicon?
Volcanoes form on this type of boundary along mid-ocean ridges, where the plates are moving apart.
What is a divergent boundary?
Molten rock and gas leave the volcano through an opening called this.
What is the vent?
A tall, cone-shaped mountain where layers of lava alternate with layers of ash.
What is a composite volcano?
What is 166?
A molten mixture of rock-forming substances, gases, and water from the mantle.
Volcanoes form on this type of boundary, where plates are colliding and can also create deep-ocean trenches?
What is a convergent boundary?
A bowl-shaped area that may form at the top of a volcano around the central vent.
What is a crater?
Lava flows to build a wide, gently sloping mountain called this.
What is a shield volcano?
The number of 6th graders who have a sibling in 8th grade.
What is 6?
Magma when it reaches the surface.
What is lava?
The resulting volcanoes from converging boundaries can create a string of islands called this.
What is an island arc?
The spread of lava as it pours out of a vent.
What is lava flow?
Repeated floods of lava stacking flat on top of each other form these.
What is a lava plateau?
The number of 8th graders we have at BTA.
What is 26?