Challenger - Comet Vocabulary - ALL words

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Across
  1. 3. A comet that orbits the Sun in less than 200 years.
  2. 4. A set of paperwork used to keep track of information such as test results and mission developments.
  3. 6. A graduated range of values forming a standard system for measuring something.
  4. 10. The title of elected US government officials.
  5. 12. A solid material of extremely low density, produced by removing the liquid component from a conventional gel.
  6. 13. The process of working together with a group of people in order to achieve a common goal.
  7. 15. Small rocky celestial objects orbiting the Sun. These are also known as space rocks.
  8. 17. The title of the person who is in charge of the astronauts in a spacecraft.
  9. 18. How bright a nights sky object appears to the human eye from Earth; we use a numerical scale to measure this brightness.
  10. 20. A substance that is not a liquid or a solid has no size or shape of its own but can fill an entire space.
  11. 21. stands for National Aeronautics and Space Adminstration. It is in charge of U.S. science and technology that has to do with airplanes or space.
  12. 24. The process of determining the location of two points.
  13. 25. A celestial object made up of ice rock and gas that orbits the Sun.
  14. 26. A meeting place where detailed information or instructions are given, especially before people do something together as a team.
  15. 28. The time taken for a given object to make one whole orbit or go completely around another object.
  16. 29. Imitation of a situation or process; the action of pretending.
  17. 30. The action of rotating around an axis or center.
Down
  1. 1. The title of the person who is in chargeof the astronauts in Mission Control.
  2. 2. A meeting time or place scheduled for two objects or people to meet.
  3. 5. A comet that takes longer than 200 years to make one trip around the Sun.
  4. 7. Large rocky celestial objects in orbit around the Sun.
  5. 8. When anything solid turns into a gas without first becoming a liquid.
  6. 9. A step-by-step set of written instructions for performing job or task.
  7. 11. The compactness of an object.
  8. 14. A group of stars that form a picture or a shape.
  9. 16. To move in a circle or orbit around.
  10. 19. A number value for the shape of an object's orbit. Numbers range from 0-1.
  11. 22. A star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
  12. 23. The joining with a space station or another spacecraft in space.
  13. 27. The seven colors that make up white light.