Earth Science - Rocks and Minerals

What is the Mohs Hardness Scale used for?

• To rank minerals based on their ability to scratch one another, from 1 (talc) to 10 (diamond).

• To measure the weight of minerals in grams.

• To classify minerals based on their color and luster.

• To determine the temperature at which minerals melt.

What is the property of minerals that refers to the powdered color left by a mineral?

• Luster

• Cleavage

• Streak

• Hardness

Which of the following is NOT a mineral: Mica, Gold, Quartz, Coal?

• Mica

• Gold

• Quartz

• Coal

What is the definition of sedimentary rock?

• Rocks formed from the accumulation and compaction of mineral and organic particles.

• Rocks formed from the cooling and solidification of magma or lava.

• Rocks that have been changed by heat and pressure.

• Rocks formed from the crystallization of minerals in water.

Clastic Sedimentary Rocks are classified by what characteristic?

• Sediment grain size

• Mineral composition

• Color of the rock

• Location of formation

What is a mineral?

• A naturally occurring inorganic solid with a definite chemical composition and crystalline structure.

• A type of rock formed from volcanic activity.

• A substance that can be synthesized in a laboratory.

• An organic compound found in living organisms.

What is luster in minerals?

• The way a mineral reflects light, which can be described as metallic or non-metallic.

• The hardness of a mineral when scratched with a fingernail.

• The color of a mineral in powdered form.

• The crystal structure of a mineral.

What is metamorphic rock?

• Rocks that have been changed from their original form by heat, pressure, or chemically active fluids.

• Rocks formed from the cooling and solidification of magma or lava.

• Rocks that are formed by the accumulation of sediment over time.

• Rocks that have been altered by weathering and erosion.

What are igneous rocks?

• Rocks formed from the cooling and solidification of molten rock (magma or lava).

• Rocks formed from the accumulation of sediment over time.

• Rocks formed from the alteration of existing rocks due to heat and pressure.

• Rocks formed from the crystallization of minerals in water.

Tags

NGSS.MS-ESS2-1

What is cleavage in minerals?

• The tendency of a mineral to break along flat, even surfaces.

• The ability of a mineral to resist scratching.

• The color of a mineral in powdered form.

• The way a mineral reflects light.