Bell Ringer Where are volcanoes found?. I can describe different types of volcanoes.

Bell Ringer

Where are volcanoes found?

• I can describe different types of volcanoes.

• Volcanoes form on– Land– Ocean

• Where are most volcanoes located?

• Ring of Fire

• What is an eruption?

• An eruption is an outpouring of of melted rock, ash, gases, or a combination of these.

• How are lava and magma different?

• Magma is inside the Earth,

• Once magma reaches Earth’s surface, then it is called lava. (263)

• What types of volcanoes are there? How are they different?

• Shield– Built by

• Thinner, fluid lava that spreads over a large area. • The mountains have abroad base and gentle

sloping sides.

• Look at the picture

Shield volcano

• Cinder cone volcano—– Thick lava– Thrown high into the air and falls as chunks or

cinders.– Form a cone shape

• Narrow base• Steep sides

• Look at the picture

Cinder cone volcano

• Composite volcano– Built by layers of ash and cinders sandwiched

between layers of hardened lava– Shape on side of a cone looks the same as

the other.

Composite volcano

• Recap--- I forgot you tell me….

• Homework

• Quick check questions (yes both of them)• Page 246, 253,255, and 256• Also, Art Link at the bottom of 257