Unit 2 - 2023

Bronze is an alloy composed of copper (Cu) and tin (Sn) atoms. The _______________ bonds between these atoms exist as free electrons move around among a structure of nuclei (the central part of each atom).

• covalent

• ionic

• metallic

• nucleic

Which rock would be formed when magma rich in potassium, aluminum, and sodium cools slowly underground?

• Slate

• Granite

• Basalt

• Limestone

What term is used to describe a mineral's resistance to being scratched by another substance?

• Luster

• Streak

• Cleavage

• Hardness

What subatomic particle (part of an atom) has a mass of 1 amu and a positive charge?

• Electron

• Proton

• Neutron

• Quark

Which term is NOT used to describe part of the process that makes sedimentary rocks?

• Deposition

• Erosion

• Lithification

• Melting

What is the name geologists give to the process that creates layers found within sedimentary rocks?

• Crystallization

• Differentiation

• Foliation

• Stratification

Which substance is considered a mineral?

• Bone

• Feldspar

• Pearls

• Wood

Which rock would be classified as an organic sedimentary rock?

• Basalt

• Breccia

• Coal

• Limestone

Foliated metamorphic rocks are formed in _______________ metamorphic environments.

• contact

• extrusive

• intrusive

• regional

Which answer is an example of a non-foliated metamorphic rock?

• Breccia

• Hornfels

• Limestone

• Rhyolite