Volcanic activity

Where can you find the convection (magma) currents?

• inner core

• outer core

• asthenosphere

• solid upper mantle

The material of shield volcanoes is ...

• basalt

• andesite

• dolomit

• limestone

Choose the basalt volcanoes.

• Mauna Loa (Hawaii)

• Mount St. Helens

• Etna

• Volcanoes of Iceland

Choose the characteristics of basalt volcanism.

• Explosions are typical here.

• Basaltic volcanoes are very steep.

• Basalt originates from the mantle.

• It is typical at divergent plate bounderies.

Choose the characteristics of andesite volcanism.

• Huge explosions can happen.

• Volcanoes are very steep.

• Shield volcanoes are made up of andesite.

• It is typical at convergent plates.

Which term is it? The main tube or pathway for the magma to reach the surface.

• crater

• caldera

• magma chamber

• conduit or main vent

Hardened ash into a rock is called ...

• tuff

• magma

• lava

• debris

The rock type of basalt is ...

• clastic sedimentary

• metamorphic

• effusive igneous

• plutonic igneous

Andesite tuff is .... rock

• metamorphic

• effusive igneous

• plutonic igneous

• volcaniclastic

Granite is .... rock.

• sedimentary

• plutonic or intrusive igneous

• effusive igneous

• clastic