Solar System

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Across
  1. 2. Nebular Theory : the theory that the solar system developed from a cloud of gas and dust, aka the solar nebula.
  2. 3. dissociation : the breaking apart of a molecule via intense radiation
  3. 5. : planet planet that is shaped like a sphere
  4. 6. velocity : the velocity of a body along the line of
  5. 8. : the passage of a celestial body such as a planet across the face of a larger body such as a star.
  6. 9. planet : a planet orbiting the inner part of the solar system
  7. 10. meteoroid : a meteorite containing small spherical grains called chondrules.
  8. 13. : a cloud of gas and dust between the sun
Down
  1. 1. : pieces of rock that falls to Earth
  2. 4. : a planet not orbiting the sun
  3. 7. planet: A planet orbiting the outer part of the solar system. Said planets are Jupiter, Saturn, Uranus, and Neptune.
  4. 8. planet : a rocky planet similar to Earth in size and structure. These planets are Mercury, Venus, Earth, and Mars.
  5. 11. : cliffs formed where the crust has shifted that run for hundreds of kilometers across a planet’s or moon’s surface.
  6. 12. : the bright trail of light created by small solid particles entering Earth’s atmosphere and burning up. A “shooting star.”