SOL 6.3 - Space

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Across
  1. 3. a scientist who studies the universe beyond earth
  2. 6. A ball of rock and ice who's orbit is usually a long, narrow ellipse
  3. 8. a region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found
  4. 10. The attractive force between two objects; its magnitude depends on their masses and the distance between them.
  5. 11. The combining of two atomic nuclei onto a single larger nucleus, as when two hydrogen atoms join together to for helium, releasing energy.
  6. 13. A description of the solar system in which all of the planets revolve around Earth.
  7. 15. Planets The name given to the four inner planets: Mercury, Venus, Earth, and Mars.
Down
  1. 1. A chunk of rock or dust in space.
  2. 2. Any object that revolves around another object in space.
  3. 4. Objects that revolve around the sun that are too small and too numerous to be considered planets
  4. 5. The path of an object as it revolves around another planet in space.
  5. 7. A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
  6. 8. The study of the moon, stars, and other objects in space
  7. 9. A meteoroid that has hit Earth's surface.
  8. 12. a description of the solar system in which all of the planets revolve around the sun.
  9. 13. A system of millions or billions of stars held together by gravitational attraction
  10. 14. The name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune