Rocks and Minerals

A rock is a solid material made up of one or more minerals.

A mineral is a naturally occurring, inorganic solid with a definite chemical composition and crystal structure.

False. Rocks can change over time due to weathering, erosion, and other processes.

Igneous, sedimentary, and metamorphic.

Luster refers to how light reflects off the surface of a rock or mineral.

A scale used to measure the hardness of minerals, ranging from 1 (softest) to 10 (hardest).

Color, size, texture, hardness, and luster.

A type of rock formed from cooled and solidified magma or lava.

A type of rock formed from the accumulation and compaction of mineral and organic particles.

A type of rock that has been changed from its original form due to heat, pressure, or chemical processes.