Rocks and Minerals

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

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

Refer to the Mohs Hardness Scale. A mineral with a hardness of 7 can scratch -

• orthoclase feldspar, but cannot scratch talc
• calcite, but cannot scratch apatite.
• topaz, but cannot scratch fluorite
• gypsum, but cannot scratch corundum

Fossils are only found in

• Sedimentary rocks
• Foliated Metamorphic rocks
• Igneous Rocks
• Nonfoliated Metamorphic rocks

Tags

NGSS.MS-LS4-1

What is it called when layers pile up and press down on the material below?

• Compaction

• Layering

• Cementation

• I don't know

How are igneous rocks made?

• heat and pressure

• melting and cooling

• weathering, erosion, compaction and cementing

A model that describes all the processes by which rock is formed.

• rock cycle

• Weathering

• Sedimentation

Tags

NGSS.MS-ESS2-1

The three groups of rocks are classified by

• How they form
• Color
• Grain size
• Chemical Composition