Rocks and Minerals

Which of the following is a characteristic of all minerals?

• Crystalline structure

• Fills the shape of its container

• Usually organic

• Random chemical composition

Lava is found...

• after a volcano erupts.

• on the inside of a volcano.

• both inside and outside a volcano.

Which mineral is ranked highest on the Mohs scale?

• Talc

• Calcite

• Quartz

• Diamond

What do you know about graphite if you can scratch it with just your fingernail?

• It's not very lustrous.

• It's not very hard.

• Its streak is black colored.

• It has fracture.

Minerals have different properties to help scientists identify them.  Which is NOT a property used to identify minerals?

• color
• hardness
• size
• luster

A rock is a naturally formed solid made of one or more ________.

• elements

• chemicals

• minerals

An object that is solid, formed in nature, and has never been alive

• sand castle

• mineral

• plant

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

• luster

• streak

• cleavage

• fracture

Which statement CORRECTLY describes the rock cycle?

• Igneous rock can only form by heat and pressure

• Metamorphic rock can only form by crystallization

• Magma can only form by compaction and cementation

• Sediment can only form by weathering, erosion, and deposition

For sedimentary or metamorphic rock to become an igneous rock, it must first_____________.

• Melt

• Weather

• Erode

• Freeze