The Universe (Module 2

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Across
  1. 6. having or relating to the sun as center
  2. 7. a ball of ice and dust who orbits around the sun in a long, narrow ellipse, large object which orbits a star
  3. 12. - is a scientific activity the aim of which is to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate
  4. 13. - the galaxy to which Earth and other components of our Solar System belong
  5. 14. a chunk of rock or dust in space that comes from comets or asteroids
  6. 16. a theory that says that the universe will stop expanding outward, reverse direction, and pull back on itself to the single point
Down
  1. 1. the streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere
  2. 2. objects revolving around the sun that are too small and too numerous to be considered planets
  3. 3. having or relating to the earth as center
  4. 4. THEORY about the creation of the UNIVERSE
  5. 5. the movement of one object around another, Earth around the sun, year; 365 1/4 days
  6. 8. when a meteoroid burns in the atmosphere and hits the ground
  7. 9. the amount of matter in an object
  8. 10. the measure of the force of gravity on an object
  9. 11. the force that pulls an apple to the ground, pulls the moon toward Earth, keeps the planets in orbit and attract objects towards each other
  10. 15. the spinning of the Earth on its axis, day and night (24 hours)