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Unit 2 Lesson 1: Movement in Space

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  • Why can we see different parts of the sky at different times of the year?
    Due to the revolution of Earth around the sun.
  • The region between Mars and Jupiter where most asteroids are found is called______.
    Asteriod belt
  • This guy gets most of the credit for proposing that the Sun was the center of the universe.
    Copernicus
  • What do we call it when things appear to move across the night sky?
    apparent motion
  • What do you call a body that orbits a planet?
    satellite
  • What causes a meteor to burn up in the Earth's atmosphere?
    It heats up and disintegrates due to friction from the air.
  • A sun-centered model of the solar system
    heliocentric
  • These two discovered how the planets move around the Sun.
    Brahe and Kepler
  • A small rocky body that revolves around the sun
    Asteroids
  • These are meteors that have fallen to earth.
    Meteorites
  • asteroids that have broken off of the belt and fly through space
    meteors
  • A hole that has formed on the surface of a planet from a fallen meteorite
    crater
  • It is made of dust and ice and revolves around the sun.
    comets
  • The shape of a planet's orbit around the sun
    ellipse
  • _______ are huge spheres of very hot, glowing gas.
    stars
  • Comets are made of _____ and ______?
    dust and ice
  • It is a group of visible stars that form a pattern when viewed from Earth.
    Constellation
  • Alsdo known as a shooting star...
    meteors
  • An Earth-centered model of the solar system
    geocentric
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