ERSC181 B001 INTRODUCTION GEOLOGY
APUS WEEK 8 FINAL EXAM CERTIFICATION
EVALUATION COMPLETE RESPONSES 2026
◉ abundant elements of Earth's Mantle. Answer: oxygen, magnesium,
silicon, iron
◉ 3 rock types. Answer: igneous, sedimentary, metamorphic
◉ covalent bond. Answer: when two atoms share electrons
◉ Ionic Bond. Answer: forms because of the attraction of two oppositely
charged ions such as when one atom loans one or more electrons
◉ Metallic bond. Answer: electrons shared widely by many atoms and
holds the material together in a non rigid way
◉ Intermolecular Force. Answer: several types of weak bonds can attract
a molecule (a combo of atoms) to another molecule
◉ Curie Temperature. Answer: temperature at which certain magnetic
materials undergo a sharp change in their magnetic properties
, ◉ Paleomagnetism. Answer: The record of past changes in earth's
magnetic field, as recorded in in rocks and other materials. It's strong
enough to orient magnetism in certain materials, especially in iron rich
mineral magnetite, in the direction of the prevailing magnetic field.
Preserved in volcanic rocks, intrusive rocks, and some sedimentary
rocks
◉ Magnetic North. Answer: Earths magnetic field flows from south to
north causing the magnetic ends of a compass needle to point toward the
north. (this orientation is called normal polarity)
◉ Rock Magnetism. Answer: A few iron bearing minerals naturally
magnetic.
◉ Plate Tectonics. Answer: The continual motion, creation, and
destruction of the earth's active surface (crust and upper mantle =
lithosphere)
◉ Continental Drift. Answer: Alfred Wegnener argued that the
continents were once joined together but later drifted apart
◉ Evidence for continental drift (PANGEA). Answer: - the continents
piece perfectly together
-they have found similar fossils and rocks on continents that were
believed to once fit together
APUS WEEK 8 FINAL EXAM CERTIFICATION
EVALUATION COMPLETE RESPONSES 2026
◉ abundant elements of Earth's Mantle. Answer: oxygen, magnesium,
silicon, iron
◉ 3 rock types. Answer: igneous, sedimentary, metamorphic
◉ covalent bond. Answer: when two atoms share electrons
◉ Ionic Bond. Answer: forms because of the attraction of two oppositely
charged ions such as when one atom loans one or more electrons
◉ Metallic bond. Answer: electrons shared widely by many atoms and
holds the material together in a non rigid way
◉ Intermolecular Force. Answer: several types of weak bonds can attract
a molecule (a combo of atoms) to another molecule
◉ Curie Temperature. Answer: temperature at which certain magnetic
materials undergo a sharp change in their magnetic properties
, ◉ Paleomagnetism. Answer: The record of past changes in earth's
magnetic field, as recorded in in rocks and other materials. It's strong
enough to orient magnetism in certain materials, especially in iron rich
mineral magnetite, in the direction of the prevailing magnetic field.
Preserved in volcanic rocks, intrusive rocks, and some sedimentary
rocks
◉ Magnetic North. Answer: Earths magnetic field flows from south to
north causing the magnetic ends of a compass needle to point toward the
north. (this orientation is called normal polarity)
◉ Rock Magnetism. Answer: A few iron bearing minerals naturally
magnetic.
◉ Plate Tectonics. Answer: The continual motion, creation, and
destruction of the earth's active surface (crust and upper mantle =
lithosphere)
◉ Continental Drift. Answer: Alfred Wegnener argued that the
continents were once joined together but later drifted apart
◉ Evidence for continental drift (PANGEA). Answer: - the continents
piece perfectly together
-they have found similar fossils and rocks on continents that were
believed to once fit together
