Birth of Rocks Review

A type of rock that comes from shield volcanoes.

• Basalt
• Felsite

A volcano shaped like a cone by thick lava.

• shield volcano
• cone volcano
• extinct volcano

A volcano shaped like a shield...made with runny lava.

• cone volcano
• shield volcano
• extinct volcano

A volcano that no longer erupts.

• Cone volcano
• Shield volcano
• Extinct volcano

A type of rock that comes from erupting cone volcanoes.

• Felsite
• Basalt

Molten, liquid rock that spews from a volcano is called...

• lava
• magma

________ causes rocks to split because water has seeped into the cracks, melting and freezing.

• root wedging
• ice wedging

________ causes rocks to split because seeds have fallen into the cracks, growing a new plant.

• ice wedging
• root wedging

The stretch of coastlines in the Pacific Ocean shaped like a horseshoe where most volcanoes form is called...

• The Ring of Lava
• The Ring of Volcanoes
• The Ring of Fire

Scientists worry about landslides on hills/mountains that have a _____degree slant.

• 40 
• 35
• 30