Volcano Vocab!Each day you will write down 2 – 4 definitions. You will be quizzed on these terms on Thursday of THIS WEEK!

2. Viscosity• A substance’s

resistance to flow

1. Hot Spot

An area of volcanic activity in the center of a lithospheric plate

4. Tephraviolent, explosive

eruptions where tephra is blown into the atmosphere.

anything blown out of a volcano

3. Pyroclastic

Huge quantities of rock, glass and gas are blown high into the air

Explosions of gas and ash from the side of the volcano; destroys part of the mountain

5. Ash fall 6. Lateral blast

Molten rock that has reached Earth’s surface.

Molten rock that is underground (HAS NOT REACHED THE SURFACE!)

7. Lava 8. Magma

Mudslide created when it rains after an ash fall.

A volcano that is not likely to erupt again.

9. Lahar 10. Extinct

A “sleeping” volcano that will likely erupt again in the future.

A volcano that has erupted recently and will continue.

11. Dormant

12. Active