Formation of Solar System
7th - 8th grade
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a year ago
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  • Question 1
    45 seconds
    Q. The Nebular Theory is:
    answer choices
    A theory on how the Milky Way galaxy was formed
    A theory on how the universe was formed
    A theory on how the solar system will be destroyed
    A theory on how the solar system was formed
  • Question 2
    30 seconds
    Q. A nebula is:
    answer choices
    A cloud of ice
    A cloud of dust and gas
    A cloud of just gas
    A cloud of just dust
  • Question 3
    30 seconds
    Q. The most abundant gases in a nebula are:
    answer choices
    Hydrogen & Oxygen
    Nitrogen & Oxygen
    Hydrogen & Helium
    Oxygen & Helium
  • Question 4
    30 seconds
    Q. A nebula starts to collapse because of:
    answer choices
    A nearby star shining it's light
    A passing spaceship
    A passing comet
    Gravity
  • Question 5
    30 seconds
    Q. As a nebula collapses it also begins:
    answer choices
    Expand
    Rotate
    Shake
    Turn to ice
  • Question 6
    45 seconds
    Q.

    A nebula collapses down into a disk known called:

    answer choices

    A compact disk

    An irregular cloud

    An protostellar disk

    An circular disk

  • Question 7
    30 seconds
    Q.

    What forms in the very center of the accretion disk?

    answer choices

    A protostar

    A planet

    A protoplanet

    A planetesimal

  • Question 8
    30 seconds
    Q. What is forming in the accretion disk away from the center?
    answer choices
    Light
    Protostars
    Planetesimals
    Hydrogen
  • Question 9
    30 seconds
    Q. The group of inner planets are known as:
    answer choices
    The Terrestrial Planets
    The Gas Giants
    The Outer Planets
    The Hallow Planets
  • Question 10
    30 seconds
    Q. The group of outer planets are known as:
    answer choices
    The Terrestrial Planets
    The Gas Giants
    The Inner Planets
    The Rocky Planets
  • Question 11
    30 seconds
    Q. How long ago did these nebular processes start?
    answer choices
    4.6 years ago
    4.6 light years ago
    5.6 billion years ago
    4.6 billion years ago
  • Question 12
    30 seconds
    Q. Intense pressure in the protosun (protostar) caused:
    answer choices
    Fire in the Sun to start
    Helium to break down into Hydrogen
    Nuclear Fusion to start
    Nuclear Fusion to end
  • Question 13
    30 seconds
    Q. The shape of the planets and dwarf planets after accumulating all their material is:
    answer choices
    Irregular
    A Sphere
    An Oval
    A disk
  • Question 14
    30 seconds
    Q. What materials could not survive the heat where the rocky planets were formed?
    answer choices
    Gamma Rays
    Plasma
    Ice and Gas
    Rocks
  • Question 15
    30 seconds
    Q.

    What two objects do scientists study to learn about the formation of the solar system?

    answer choices

    Stars & Star systems

    Comets & Asteroids

    Comets & Meteoroids

    Asteroids & Distant Stars

  • Question 16
    900 seconds
    Q. When the solar nebula spun out into a disc-shape, what direction did it start spinning?
    answer choices
    clockwise
    counter-clockwise
  • Question 17
    30 seconds
    Q. Because of temperature in the protoplanetary disk...
    answer choices
    Rocks, metals and ices froze in the inner region only
    Rocks and metals froze in both regions and ice only in outer region
    Rocks and metals froze in the inner region and ice in outer region
    Rocks and metals froze in both regions and hydrogen gas froze only in outer region
  • Question 18
    30 seconds
    Q. The order of the formation of the solar system: 
    Solar nebula - protostellar disk- nuclear fusion - sun - planetesimals - planets
    answer choices
    True
    False
  • Question 19
    30 seconds
    Q. Why does the Earth orbit the sun? 
    answer choices
    The sun pulls Earth toward it.
    The sun pulls Earth in an orbit.
    The sun pushes Earth away.
    Electromagnatism from the sun keeps Earth in orbit.
  • Question 20
    30 seconds
    Q.

    What happens during nuclear fusion in the sun?

    answer choices

    oxygen nuclei combine to form helium

    Helium nuclei combine to form oxygen

    helium nuclei combine to form hydrogen

    hydrogen nuclei combine to form helium

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