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Earth Science 1
Earth Science 1
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MCAS questions on Earth and Space Science
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which layer of Earth is composed
primarily
of solid iron?
Layer 1
Layer 3
Layer 4
Layer 2
2
Which of the following best describes the physical feature represented by this contour map?
a valley with two gently sloping sides
a flood plain with creeks and streams
a series of rivers flowing in concentric circles
a hill with slopes that vary in steepness
3
Which of the following most likely causes Earth’s inner core to be a solid?
Themetals in the core are very heavy.
Thetemperature of the core is very low.
Thepressure at the core is very high.
Thechemicals in the core are very reactive.
4
Planets in our solar system were formed mainly by one force, which also affects their motion.
The force is gravity.
The force is light.
The force is thermal energy.
The force is with you.
5
Based on the diagram, which of the phase
best
describes how the Moon would appear from Earth?
No moon
Crescent moon
Half moon
Full moon
6
Which of the following processes caused the breakup and relocation of the landmasses over time?
volcanic eruptions and weathering
strong ocean currents
tectonic plate motion
erosion and sedimentation
7
Which of the rulers should the student use to measure the length of the object
more precisely?
a ruler that is marked in millimeters
a ruler that is also marked in inches
a ruler that has zero exactly at the end
a ruler that is longer
8
What is the primary energy source that drives all weather events?
the sun
Earth's gravity
the moon
Earth's rotation
9
Seafloor spreading provides evidence of which of the following Earth processes?
weathering of mountains
formation of sedimentary rocks
movement of crustal plates
erosion of coastlines
10
Heat energy from the Sun is transferred to Earth primarily by which of the following processes?
conduction
convection
evaporation
radiation
11
Which of the following
best
explains why it is warmer at the equator than at the North Pole?
Theequator has a larger area than the North Pole.
The equator is closer to the Sun than the North Pole.
The equator receives more direct sunlight than the Pole.
Equator has more hours of daylight per year than the Pole.
12
During migration, birds eat horseshoe crab eggs in U.S. What would
most
threaten the species?
increased sizes of horseshoe crab eggs
longer summers in North America
decreased populations of horseshoe crabs
less rainfall in South America
13
Evidence of past glacial activity
best
supports which of the following conclusions?
The total amount of radiation from the Sun was much higher.
Total numbers of organisms on Earth have changed over time.
Sealevels were much higher in the past.
Theclimate on Earth has changed over time.
14
Which is
most directly
responsible for the changes that occurred in the pond environment?
evaporation
sediment deposition
freezing
chemicalweathering
15
Which of the following is the
best
estimate of the number of stars in a typical galaxy?
Thousands
Billions
Millions
Hundreds of thousands
16
Which of the following statements
best
describes one way that the Moon is different from Earth?
TheMoon is not solid.
TheMoon has no gravity.
TheMoon receives almost nosolar light.
The Moon has almost no atmosphere.
17
Which of the following processes is represented in the box?
metamorphosis
decomposition
photosynthesis
respiration
18
The two
most
responsible for the decrease in height of Appalachian Mountains since formation?
weatheringand erosion
volcaniceruptions and landslides
tectoniccollisions and earthquakes
sedimentationand flooding
19
Which of the following statements best describes the role of gravity in the formation of stars?
Gravity pushes rocks and dust outward from a dense center.
Gravity cools gases and liquids until they are a solid mass.
Gravity converts solid matter into gases and light energy
Gravity makes gases and dust condense into spheres.
20
Which
best
explains why the tilt of Earth on its axis causes summer to be warmer than winter?
The hemisphere iscloser to the Sun in thesummer.
Thegreenhouse effect increasesin the summer
Therays of the Sun strike more directlyin the summer.
Warmocean currents flow fromthe tropics in summer.
