Carter Daluisio Period 1

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Across
  1. 3. at the planet's opposition which is when it is exactly opposite the Sun.
  2. 8. Hydrogen becomes a liquid at very low temperature and high pressure.
  3. 9. a place between the rocky planets and the gas planets
  4. 13. the four innermost planets in the solar system.
  5. 16. Small chunks of rock that travel through space
  6. 17. the distance between the Earth and the Sun.
  7. 18. space rocks and chunks of space metal that land on Earth
Down
  1. 1. a measure of how non-circular the orbit of a body is.
  2. 2. a small chunk of dust and ice that orbits, or travels around, the sun.
  3. 4. a large planet mostly composed of helium and/or hydrogen
  4. 5. a ring of icy bodies just outside of Neptune's orbit.
  5. 6. Very small body not quite a planet
  6. 7. a line of cliffs formed by the faulting or fracturing of the earth's crust
  7. 10. one of numerous small solid heavenly bodies which may have existed at an early stage of the development of the solar system and from which the planets may have been formed.
  8. 11. Small chunks of rock that travel through space
  9. 12. an interaction between a planet, such as Earth, and streams of debris from a comet.
  10. 14. the orbit of each planet in the Solar System is approximately an ellipse with the Sun at one focus point
  11. 15. the area around a star where it is not too hot and not too cold for l on the surface of surrounding planets