Volcano Make up Bellwork

Bellwork1. A ______ is mountain made up of

layers of lava and ash2. The _____________ is a chain or ring of

volcanoes around the pacific ocean created by convergent boundaries

3. Iceland formed at ______ boundary where plates are spreading apart

4. Hawaii formed over a _____ _____.5. The Hawaiian Island chain formed as the

______ plate moved over the stationary_____ _____

6. Mount Saint Helens formed above a subduction zone at a ________boundary

Answer Bank

divergentConvergent

Volcanopacific

Hot spot (2)Ring of Fire

1. As its silica content increases, magma tends to have a thicker or greater _______

2. _____ magma is a very fluid easy flowing, low viscosity magma which can travel great distances

3. _____ magma is a thick, high viscosity which has a high resistance to flow because of its high silica level.

4. Lava with low levels of silica and a low gas content will travel large distances and create flat ____ Volcano

Answer Bank

basalticShield

viscosityrhyolitic

Bellwork

1. The 3 places we find volcanoes are at _______ boundaries, ______ boundaries, and_________.

2. ________is located at a________plate boundary, here two plates are_______.

3. Fluid, Low viscosity lava with low levels of silica will travel large distances, creating a gentle flat sloping ______volcano

4. Magma or lava with more silica tends to have greater _______.

Answer Bank

basalticShield

Mt. Saint Helens

Convergent(2) viscosity

Silicacollide

High (2)DivergentHot spot

Bellwork

Bellwork1. Volcanoes are classified into 3 types;

_______ cone, ______ cone, and ________.

2. Composite Volcanoes erupt violently, and _______; while Shield volcanoes erupt quietly and non- ________.

3. Cinder cone volcanoes have _______ sided slopes; while Shield volcanoes have ______, gentle slopes.

4. Large shield volcanoes are made of layers of ______, giving them _______, gently sloping sides.

5. Mt. _____ _____ is an example of a composite volcano.

Answer Bank

LavaKilauea

CompositeCinder Cone

ShieldSteep

ExplosivelyNon-explosively

flatSaint Helens

1) What are the names of the 3 volcanoes above?

2) Which volcano is the most explosive?

3) Which volcano is the least explosive?

4) Which volcano is the steepest?5) Which volcano is an example of

Mt. Saint Helens Washington?6) Which volcano is an example of

Hawaii?

A B C

Bellwork

Answer Bank

Cinder ConeShield

Composite Cone