1st Rocks and minerals

Which type of rock results from melting and cooling of magma?

• Igneous
• Metamorphic
• Sedimentary
• Extrusive

Which type of rock forms from extreme heat and pressure?

• Igneous
• Sedimentary
• Organic
• Metamorphic

A metamorphic rock changes into an igneous rock by what two processes?

• Melting and cooling
• Extreme heat and pressure
• Compaction and cementation
• Weathering and erosion

Wind, water, and ice breaking down rock is called

• Erosion
• Deposition
• Compaction
• Weathering

This rock was found near the mouth of a volcano. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

When sediments are pressed together tightly, this is called ____________.

• Compaction
• Cementation
• Weathering
• Erosion

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 color of a mineral in powder form is called the mineral's 

• hardness
• specific gravity
• luster
• streak

How light reflects off of a mineral is called the mineral's 

• luster
• streak
• cleavage
• fracture

By definition, a mineral has which of the following characteristic(s)?

• definite chemical composition
• crystal structure
• naturally occuring
• all of the above