Quiz
The Earth
9th - 12th grade
Played 771 times
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Other Sciences
4 years ago by
craniumfire
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  • Question 1
    30 seconds
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    Q. Of the four terrestrial planets, Earth is the _____
    answer choices
    largest
    second largest
    third largest
    smallest
  • Question 2
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    Q. Unlike the other three terrestrial planets, Earth has _____
    answer choices
    liquid water
    an iron core
    polar ice caps
    carbon dioxide in the atmosphere
  • Question 3
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    Q. Earth's inner core is solid, and made mostly of _____
    answer choices
    iron oxide
    nickel and cobalt
    iron and nickel
    nickel and copper
  • Question 4
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    Q. What percentage of the radius of the Earth is comprised by the solid inner core?
    answer choices
    10%
    20%
    30%
    40%
  • Question 5
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    Q. The outer core is mostly iron and nickel, but it’s _____
    answer choices
    unstable
    solid
    liquid
    radioactive
  • Question 6
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    Q. The consistency of the mantle is like _____
    answer choices
    molten lava
    very thick hot plastic
    molasses in January
    moldable clay
  • Question 7
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    Q. What is the name of the solid layer of rock, comprising Earth's outer surface?
    answer choices
    mantle
    crust
    outer core
    shell
  • Question 8
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    Q. Earth's crust isn’t a solid piece; it’s broken up into large _____
    answer choices
    trays
    sheets
    platters
    plates
  • Question 9
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    Q. Convection currents in the mantle cause warmer material to rise at a rate of a few _____
    answer choices
    centimeters per year
    meters per year
    kilometers per year
    meters per second
  • Question 10
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    Q. The plates in the Earth's crust slide around at about the rate _____
    answer choices
    a snail moves
    your fingernails grow
    your hair grows
    bamboo grows
  • Question 11
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    Q. Which part of the Earth is about as hot as the surface of the Sun?
    answer choices
    crust
    outer mantle
    inner mantle
    core
  • Question 12
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    Q. Which element, deep inside the Earth, adds heat as it radioactively decays?
    answer choices
    iron
    thorium
    uranium
    plutonium
  • Question 13
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    Q. Earth's magnetic field is mainly generated by _____
    answer choices
    convection of liquid in the outer core
    rotating solid in the inner core
    convection of liquid in the inner core
    rotating solid in the outer core
  • Question 14
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    Q. How high is the Kármán line, the boundary between the Earth's atmosphere and outer space?
    answer choices
    10 km above sea level
    50 km above sea level
    100 km above sea level
    500 km above sea level
  • Question 15
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    Q. Which gas comprises 78% of our atmosphere?
    answer choices
    oxygen
    nitrogen
    carbon dioxide
    argon
  • Question 16
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    Q. What percent of our atmosphere is oxygen?
    answer choices
    35
    21
    15
    8
  • Question 17
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    Q. Which atmospheric molecule is good at absorbing solar ultraviolet light?
    answer choices
    oxygen
    ozone
    carbon dioxide
    argon
  • Question 18
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    Q. What is the name for Earth's natural light display, caused by energized solar wind particles?
    answer choices
    aorta
    aurora
    arrhythmia
    arboreal
  • Question 19
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    Q. The atmosphere exerts a pressure on the surface of the Earth of about _____
    answer choices
    a kilogram per square centimeter
    a kilogram per square meter
    a gram per square centimeter
    a gram per square meter
  • Question 20
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    Q. What percentage of the Earth's surface is covered in water?
    answer choices
    about 50%
    about 60%
    about 70%
    about 80%
  • Question 21
    30 seconds
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    Q. Which atmospheric molecule traps infrared light, leading to the greenhouse effect?
    answer choices
    oxygen
    ozone
    nitrogen
    carbon dioxide
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