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Flashcards in Volcanoes Deck (32):
1

What is the difference between magma and lava

Magma is under the crust
Lava is XXXXXX

2

What is the ring of fire and where is it

Belt of volcanoes located in the Pacific Ocean

3

Where do volcanoes form

Converging boundaries
Diverging boundaries
Hot spots

4

How do volcanoes form along converging plate boundaries

Plates collide and have magma come up and create volcanoes

5

Example of a volcano that formed along converging plate boundaries

Mariana's islands

6

How do volcanoes form along converging plate boundaries

Floor pulls apart causing lava to spill

7

Example of a volcano that formed along diverging plate boundaries

Mid atlantic ridge

8

How do volcanoes form along hot spots

Magma melts through the crust

9

Example of a volcano that formed along a hot spot

XXXXX

10

Why does magma rise up to the earth's surface

Less dense than surroundings

11

What is the difference between a quiet eruption and an explosive eruption?

Quiet eruption XXXXX

EXPLOSIVE ERUPTION XXXXXXX

12

Define Pahoehoe

Fast moving

13

Define Aa

Slow moving

14

What type if eruption produces a pyro clastic flow?

Volcano hurls out ash

15

What are three stages of a volcano

Active
Dormant
Extinct

16

Define active

Erupting

17

Define dormant

Sleeping

18

Define extinct

Will never erupt again

19

Three types of volcanoes

Cinder cone
Composite
Shield

20

Define shield volcanoes

Slow growing and round top

21

What kind of eruption produces a shield volcano

Lava flow

22

Give an example of a shield volcano

X

23

Define cinder cone

Fast growing

24

What kind of eruption produces a cinder cone

Explosive

25

Give an example of a cinder cone volcano

Mount St. Helens

26

Define composite

Explosive. Fast growing

27

What kind of eruption produces a composite volcano

Exploding

28

Example of a composite volcano

Mt Vesuvius

29

What is a caldera

Xxxx

30

How does a caldera form

Xxxx

31

Example of a caldera

Xxxx

32

What is a volcano

Weak spot in the crust where lava comes out