ESL5 Science (1-1): Volcanoes (2)

They are built by thick lava that is thrown high into the air and falls as chunks or cinders.

• Shield volcanoes

• Cinder-cone volcanoes

• Composite volcanoes

• Active volcanoes

They are built by layers of ash and cinders sandwiched between layers of hardened lava.

• Shield volcanoes

• Composite volcanoes

• Cinder-cone volcanoes

• active volcano

currently erupting or has recently erupted

• active volcano

• Shield volcanoes

• Cinder-cone volcanoes

• Composite volcanoes

a line of volcanic mountains

• island chain

• Ring of Fire

• hot spot

• volcanic island

In areas where an ocean-floor plate is pushed under another ocean-floor plate, an ________ forms.

• island arc

• stationary pool

• plate boundary

• magmas

Most volcanoes are found at ..................

• plate boundary

• mantle

• laccolith

• island chain

They are built by thinner, fluid lava that spreads over a large area

• 
  Shield volcanoes

• active volcanoes

• 
  Cinder-cone volcanoes

• 
  Composite volcanoes

What is the FIRST thing that happens when an island is formed?

• Lava cools and hardens into rock and builds up.

• Rock melts into magma.

• 
  An island forms in the ocean.

• 
  
  A volcano forms and erupts.

What is the SECOND thing that happens when an island is formed?

• 
  An island is formed.

• A volcano forms and erupts.

• Rock melts into magma.

• Magma pushes into the crust.

What is the THIRD thing that happens when an island is formed?

• Magma pushes into the crust.

• A volcano forms and erupts.

• 
  Lava cools and hardens into rock and builds up.

• 
  Rock melts into magma.