Earth Science Chapter 9
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List 8 mineral properties used to identify mineral groups.
• Texture • Grain size • Composition • Rock name • Composition • Texture • Comments • Rock name These properties help in classifying and identifying different mineral groups.
What is the first step in the rock cycle?
Magma The rock cycle involves processes like crystallization, weathering, and metamorphism.
What are the three main types of rocks in the rock cycle?
• Igneous rock • Sedimentary rock • Metamorphic rock Each type of rock forms through different processes in the rock cycle.
Define mafic magma.
Low silica, high iron, flows easily Mafic magma is characterized by its fluidity and darker color.
Define felsic magma.
High silica content, viscosity doesn’t flow well, lighter color Felsic magma is thicker and typically forms lighter-colored rocks.
Define intermediate magma.
Intermediate silica content, 60% This type of magma has characteristics between mafic and felsic.
Fill in the blank: The cycle of scientific enterprise includes hypothesis, experiment, analysis, review, and _______.
Theory The theory represents the best explanation based on experimental results.
What is the process of compaction and cementation associated with?
Sedimentary rock This process occurs when sediments are pressed together and minerals precipitate to bind them.
What does weathering refer to in the rock cycle?
The breakdown of rocks Weathering is a key process that leads to the formation of sediment.