Rock Exam

Refers to a mineral’s ability to scratch another mineral or be scratched by another mineral.

• Luster

• Hardness

• Streak

• Specific gravity

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

• Non-Foliated Rock

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

• erosion

• weathering

• sediments

• Deposition

What are the 3 major types of rocks?

• Igneous, Metamorphic, Sedimentary

• Metamorphic, Igneous, Cementation

• magma, lava, crystals

• Igneous, Lava, Magma

The process by which metamorphic rocks are formed...

• heat and pressure

• erosion and deposition

• melting and cooling

• Compaction and Cementation

What do we call the material that comes from rocks that have been broken down into smaller pieces. This usually results from weathering.

• texture

• weathering

• sediment

• erosion

What causes igneous rocks to form

• compaction of sediment

• animal and plant remains aka fossils

• cementation or hardening of minerals

• cooling magma, lava, and pressure

• sediment

Formed by cooling & solidification of magma

• Sedimentary
• Metamorphic
• Extrusive Igneous
• Intrusive Igneous

Geocentric means what

• sun centered

• Earth centered

• retrograde

• rock middle

Rock made from lava

• Igneous

• sedimentary

• Metamorphic

• All the above