Extra Credit - 500 Points - Due May 2

A rock formed from fragments of other rocks is a(n)

• Metamorphic Rock
• Sedimentary Rock
• Extrusive Rock
• Igneous Rock

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

The process when rocks break into smaller pieces due to exposure to natural elements is called

• erosion
• weathering
• sediments

Which rock is formed form the cooling of volcanic ash on Earth's surface?

• intrusive igneous

• foliated metamorphic

• extrusive igneous

• organic sedimentary

Rocks that form from colling magma inside Earth?

• Igneous intrusive

• Igneous extrusive

• Metamorphic foliated

• Metamorphic nonfoliated

This is the continuous process of rock changing from one type to another.

• Igneous rocks

• Sedimentary rocks

• Metamorphic rocks

• Rock Cycle

What type of rock might contain evidence of past life?

• Sedimentary Rock

• Igneous Rock

• Metamorphic Rock

Limestone is a sedimentary rock. During the rock cycle, limestone is changed into marble, a metamorphic rock. The processes that act on limestone and change it into marble are

• weather and erosion

• heat and pressure

• compacting and cementing

• melting, cooling, and hardening

According to the diagram, what process is shown by letter A?

• extrusion

• erosion

• crystallization

• intrusion

According to the diagram, what process is shown by letter B?

• compaction & cementation

• weather & erosion

• heat & pressure

• melting