Science Semester Test Practice
54 Questions
| Total Attempts: 32
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Questions and Answers
- 1.A large, circular depression that forms when the magma chamber below a volcano partially empties and causes the ground above to sink.
- A.
Felsic lava
- B.
Caldera
- C.
Sand dune
- D.
Focus
- 2.A mineral that does not contain compounds of silicon and oxygen.
- A.
Nonsilicate minerals
- B.
Silicate minerals
- 3.Barrier islands: a long ridge of sand or narrow island that lies parallel to the shore.
- A.
True
- B.
False
- 4.Describes magma or igneous rock that is rich in feldspars and silica and that is generally light in color
- A.
Felsic
- B.
Mafic
- C.
Caldera
- D.
Pyroclastic material
- 5.Ecosystems respond to environmental changes by ways that maintain or restore balance in the ecosystem.
- A.
True
- B.
False
- 6.A mineral that contains a combination of silicon and oxygen and that may also contain one or more metals.
- A.
Silicate minerals
- B.
Nonsilicate minerals
- 7.Barrier reef: a coral reef running parallel to the shore but separated from it by a channel of deep water.
- A.
True
- B.
False
- 8.Berm: a raised section that some beaches have.
- A.
True
- B.
False
- 9.An earthquake is a movement or trembling of the ground that is caused by a sudden release of energy when rocks along a fault move. The epicenter is directly below the focus and it happens near the plate boundary because that's where the motion takes place.
- A.
True
- B.
False
- 10.Evolution: the process of change by which new species develop from preexisting species over time.
- A.
True
- B.
False
- 11.Headlands: a high and steep formation of rock that extends out from shore into the water.
- A.
True
- B.
False
- 12.Geologic column: an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which oldest rocks are at the bottom.
- A.
True
- B.
False
- 13.Geologic time scale: this scale outlines the development of Earth and life on Earth
- A.
True
- B.
False
- 14.Impact hypothesis: a hypothesis some believed ended with the last of dinosaurs. Consisted of an asteroid crashing into Earth and killing them all.
- A.
True
- B.
False
- 15.Just click true, and study the farming methods that conserves topsoil again.
- A.
True
- B.
False
- 16.Mafic lava describes magma or igneous rock that is rich in magnesium and iron and that is generally dark in color.
- A.
True
- B.
False
- 17.Mass extinction: an episode during which large members of species became extinct.
- A.
True
- B.
False
- 18.Newton's law of gravitation states that the force of attraction between any two objects depends on their masses and the distance between them.
- A.
True
- B.
False
- 19.Igneous rock forms when magma, or molten rock, cools and hardens.
- A.
True
- B.
False
- 20.One example of an extrusion (igneous rock masses that form on Earth's surface) would be flat masses of rock called lava flows.
- A.
True
- B.
False
- 21.Paleomagnetism is the study of alignment of magnetic minerals in rock, specifically as it relates to the reversal of Earth's magnetic poles; also the magnetic properties that rock acquires during formation.
- A.
True
- B.
False
- 22.Sedimentary Rock Features
- A.
Stratification
- B.
Cross-beds
- C.
Graded bedding
- D.
Mud Cracks
- E.
Fossils and Concretions
- 23.Metamorphic rock forms when heat, pressure, or a chemical process ir applied on a rock and becomes another.
- A.
True
- B.
False
- 24.Shield: large areas of exposed Precambrian rocks in every continent except Antarctica
- A.
True
- B.
False
- 25.Spits: a long, narrow deposit of sand connected at one end of the shore.
- A.
True
- B.
False
- 26.Sedimentary rock forms when sediment deposits that form when rocks, mineral crystals, and organic matter have been broken into fragments, called sediments, are composed or cemented together.
- A.
True
- B.
False
- 27.The boundary between tectonic plates that are sliding past each other horizontally.
- A.
Transform boundary
- B.
Divergent boundary
- C.
Convergent boundary
- D.
None of the above
- 28.The geologic era that lasted 251 million to 65.5 million years ago. Also called the Age of Reptiles.
- A.
Precambrian Time
- B.
Mezosoic Era
- C.
Paleozoic Era
- D.
Cenozoic Era
- 29.The boundary between tectonic plates that are moving away from each other.
- A.
Transform boundary
- B.
Convergent boundary
- C.
Divergent boundary
- 30.The geologic era that lasted from 542 million to 251 million years ago.
- A.
Precambrian Time
- B.
Mezosoic Era
- C.
Paleozoic Era
- D.
Cenozoic Era
- 31.The interval of time in the geologic time scale from Earth's formation to the beginning of the Paleozoic era, from 4.6 billion years to 542 million years ago.
- A.
Precambrian Time
- B.
Mezosoic era
- C.
Paleozoic era
- D.
Cenozoic era
- 32.The source of Earth's magnetic field may be _______________________.
- A.
The sun
- B.
The liquid iron on Earth's outer core
- C.
It's axis
- D.
Other planets
- 33.The sources of energy on Earth are (select 2)
- A.
The sun
- B.
Other planets
- C.
Radioactive decay
- D.
The moon
- 34.The boundary between tectonic plates that are colliding.
- A.
Convergent boundary
- B.
Transform boundary
- C.
Divergent boundary
- 35.Types of sedimentary rock
- A.
Chemical
- B.
Organic
- C.
Clastic
- D.
Igneous
- 36.What are the types of volcanic cones? (select the correct ones)
- A.
Silicate cones
- B.
Shield volcanoes
- C.
Cinder cones
- D.
Composite volcanoes
- 37.Tombolos: beach deposits that connect an off-shore island to the mainland.
- A.
True
- B.
False
- 38.What is the shape of Earth?
- A.
Oval
- B.
Circle
- C.
Oblate spheroid
- D.
Square
- 39.The current geologic era, which began 65.5 million years ago; also known as the Age of Mammals.
- A.
Precambrian Time
- B.
Mezosoic Era
- C.
Paleozoic Era
- D.
Cenozoic Era
- 40._______ is the location within Earth along a fault at which the first motion of an earthquake occurs
- 41._________ is the little earthquake that proceed some earthquakes.
- 42._____________ is the hypothesis that a single large landmass broke up into smaller landmasses to form the continents, which then sifted to their present locations.
- 43.____________ is a piece of lithosphere that has a unique geologic history and that may be part of a larger piece of lithosphere, such as a continent.
- 44.When the temperature of rock rises above its melting point,
- A.
It turns to ice
- B.
It melts
- C.
It hardens
- D.
It vanishes
- 45.__________________ is the process by which new oceanic lithosphere (sea floor) forms when magma rises to Earth's surface at mid-ocean ridges and solidifies, as older, existing sea floor moves away from the ridge.
- 46.___________________ are fragments of rock that form during a volcanic eruption.
- 47.__________ is the point on Earth's surface directly above an earthquake's starting point/focus.
- 48.____________ is the least viscous type of mafic lava. It forms wrinkly volcanic rock when it cools.
- 49.___________ is the process by which Earth's crust breaks apart; can occur within continental crust or oceanic crust.
- 50.______________ is the solid, plastic layer of the mantle beneath the lithosphere.
- 51.____________ is the solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle.
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