Volcanoes

Question 1

What kind of volcano is this?

Answer 1

Composite or stratovolcano

Very tall with steep sides

Question 2

What kind of volcano is this?

Answer 2

Cinder cone

Steep sides and short

Question 3

What kind of volcano is this?

Answer 3

Shield

Wide and very tall

Question 4

Magma

Answer 4

Liquid rock beneath the surface of the Earth

Question 5

Lava

Answer 5

Liquid rock on the surface of the Earth

Question 6

Vent

Answer 6

Opening that lava comes out of

Question 7

Cinder

Answer 7

Small blob of lava ejected from a volcano

Question 8

Bomb

Answer 8

Large blob of lava ejected from a volcano

Question 9

Ash

Answer 9

Sand-like particle ejected from a violent eruption.

Falls like snow crushing roofs

Question 10

Dust

Answer 10

Fine volcanic ash from violent eruptions.

Can enter the atmosphere and block out some of the Sun’s energy, reducing temperatures and the rate of photosynthesis

Question 11

Silica

Answer 11

Ingredient in magma that makes it thicker

Higher % of silica = thick lava = violoent eruptions

Question 12

Water

Answer 12

Ingredient in magma found as steam. Steam can lead to higher pressure in the volcano and violent eruptions.

Question 13

High temperatures

Answer 13

High temperature lava flows quickly and leads to quiet eruptions.

Low temperature lava flows poorly and leads to violent eruptions.

Question 14

Glacier on a volcano

Answer 14

Glaciers melt prior to eruptions causing deadly mudflows

Question 15

Wind and volcanos

Answer 15

Ash can be blown by wind to far off areas putting them in jeopardy

Question 16

Pyroclastic Flow

Answer 16

An avalanche of thick, high silica lava down the side of a volcano

Buried the city of Pompeii