Science Semester Test Practice
54 Questions
| Total Attempts: 33
Questions and Answers
- 1.What is the shape of Earth?
- A.
Oval
- B.
Circle
- C.
Oblate spheroid
- D.
Square
- 2.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
- 3.The sources of energy on Earth are (select 2)
- A.
The sun
- B.
Other planets
- C.
Radioactive decay
- D.
The moon
- 4.Ecosystems respond to environmental changes by ways that maintain or restore balance in the ecosystem.
- A.
True
- B.
False
- 5.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
- 6.When the temperature of rock rises above its melting point,
- A.
It turns to ice
- B.
It melts
- C.
It hardens
- D.
It vanishes
- 7.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
- 8.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
- 9.___________________ are fragments of rock that form during a volcanic eruption.
- 10.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
- 11.____________ is the least viscous type of mafic lava. It forms wrinkly volcanic rock when it cools.
- 12.What are the types of volcanic cones? (select the correct ones)
- A.
Silicate cones
- B.
Shield volcanoes
- C.
Cinder cones
- D.
Composite volcanoes
- 13.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
- 14.The boundary between tectonic plates that are moving away from each other.
- A.
Transform boundary
- B.
Convergent boundary
- C.
Divergent boundary
- 15.The boundary between tectonic plates that are colliding.
- A.
Convergent boundary
- B.
Transform boundary
- C.
Divergent boundary
- 16.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
- 17.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
- 18.A mineral that does not contain compounds of silicon and oxygen.
- A.
Nonsilicate minerals
- B.
Silicate minerals
- 19.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
- 20.Types of sedimentary rock
- A.
Chemical
- B.
Organic
- C.
Clastic
- D.
Igneous
- 21.Sedimentary Rock Features
- A.
Stratification
- B.
Cross-beds
- C.
Graded bedding
- D.
Mud Cracks
- E.
Fossils and Concretions
- 22.Metamorphic rock forms when heat, pressure, or a chemical process ir applied on a rock and becomes another.
- A.
True
- B.
False
- 23.Igneous rock forms when magma, or molten rock, cools and hardens.
- A.
True
- B.
False
- 24.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
- 25.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
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