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Y7

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  • Elliptical, spiral, and irregular are all types of ______. ? solar systems - universes - galaxies - stars
    galaxies
  • What force holds the planets in motion around the sun?
    Gravitational
  • The force of gravity (mass x gravity) is also known as...
    weight
  • All of the galaxies together is _______. ? nebula - solar system - Milky Way - universe
    universe
  • Large mass of stars
    Galaxy
  • What color of star is the hottest? Blue - Red -Yellow- Orange
    Blue
  • What force brings the pencil down?
    Gravitational
  • What is mass?
    The amount of matter in an object
  • What is gravity?
    The force of attraction between any two objects
  • What color of star is the coolest? Red - Yellow - Blue - White
    Red
  • Mass and weight are the same thing.
    False
  • A star is a big ball of hot gases. The gases are mostly hydrogen and _______________
    helium
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