Space Puzzle

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Across
  1. 4. - to shine light on an object and make it visible
  2. 7. Pull - the force that pulls two objects together due to their mass
  3. 8. System - the sun, the planets that orbit the sun, and other objects that orbit the sun
  4. 10. (Cosmos) - all of space and its contents
  5. 11. - the four parts of the year where weather, ecology, and number of daylight hours change as a result of Earth’s orbit around the sun
  6. 14. Phase - the shape of the illuminated part of the Moon as it appears from Earth
  7. 16. - the border between light and dark on the Moon
  8. 19. - a moon outside our solar system
  9. 20. Eclipse - when the moon is completely dark
  10. 22. Moon - a moon phase where the Moon is not visible from the Earth
  11. 23. - the force by which all things with mass or energy (including planets, stars, galaxies, and light) are brought towards one another
  12. 25. Eclipse - The moment that the moon orbits directly between the sun and the Earth
Down
  1. 1. - the tendency of an object to remain at rest or unchanged
  2. 2. Moon - a moon phase that looks like a full circle from Earth
  3. 3. Moon - a moon phase that looks like more than a half circle from Earth
  4. 5. - the relative size of things
  5. 6. Moon - a moon phase that looks like less than half a circle from Earth
  6. 9. Moon - a moon phase that looks like half a circle from Earth
  7. 12. - the star that is the main source of light at the center of our solar system
  8. 13. - something we observe to be similar over and over again
  9. 15. - the nearly circular path a smaller object (like the Moon) travels around a larger object like Earth)
  10. 17. - a rocky sphere that travels around a planet
  11. 18. - a planet outside our solar system
  12. 21. - the circular movement of an object around its center (like a top spinning)
  13. 24. - a collection of gas, dust, stars, and solar systems that are held together by gravity