Set 8B

___ volcanoes are flat and dome shaped (usually erupt with lava).

• shield

• sword

• cinder cone

• composite cone

• stratovolcano

___ volcanoes usually erupt with pyroclastic material.

• shield

• cinder cone

• composite cone

• stratovolcano

___ have small eruptions which produce lava and larger eruptions that produce tephra (ash).  These are known for having steep slopes.

• shield

• cinder cone

• composite cone

• stratovolcano

Label the types of volcano:

c

b

a

composite cone

cinder cone

shield

​ (a)   volcanoes -- currently erupting or have been observed to have erupted in ​ (b)   times. (Even without a recorded eruption, if there is significant ​ (c)   activity, a volcano is considered active).

• Active
• historical
• seismic
• Dormant

Tags

NGSS.MS-ESS3-2

volcanoes – an inactive but uneroded volcano.  Some occasional deep seismic activity.

• active

• dormant

• extinct

(a)   volcanos – no signs of seismic or volcanic activity.  (Seems almost definite they will not erupt again, although volcanologists cannot be certain.)

Scientists (also) classify volcanoes by the ​ (a)   and ​ (b)   of their ​ (c)   .

• intensity
• destructiveness
• explosions
• earthquakes
• lava

The Volcanic Explosivity Index (VEI) goes from 1-10.  Each number up is __ stronger.

• 5x

• 10x

• 20x

• 100x

Categorize the types of volcanoes:

Groups:

(a) shield

,

(b) cinder cone

,

(c) composite

• usually under 1,000 ft tall

• 
• 
• example: Mauna Loa

• 
• Example: Mt. Saint Helens