Chapter 7 Vocabulary Flashcards
Mineral
Naturally occurring, nonliving solid with a specific chemical makeup and repeating structure
Streak
Color powder left behind when you rub a rock against a surface
Luster
How a minerals surface reflects light
Hardness
Minerals ability to resist being scratched
Rock
Natural solid made up of one or more minerals
Igneous rock
Rock that forms when melted rock cools and hardens
Deposition
When sediment settles out of water or is dropped by wind
Sedimentary rock
Formed by cemented sediment
Metamorphic rock
Any rock that is changed by heat and pressure
Weathering
Wearing away rocks by natural process
Erosion
Wearing away and moving sediment
Rock cycle
Continuous process by which one type of rock changes into another