Earth, Moon, Sun Vocabulary Choice Board #1

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Across
  1. 2. the nearly circular path a smaller object (like the Moon) travels around a larger object like Earth)
  2. 5. Moon the moon during the phases in which the part illuminated by the sun gets larger (new moon to full moon)
  3. 6. the amount of time it takes for a planet to complete one orbit around a star or stars
  4. 8. the shape of the illuminated part of the Moon as it appears from Earth
  5. 10. to shine light on an object and make it visible
  6. 11. The moment that the moon orbits directly between the sun and the Earth
  7. 12. the force by which all things with mass or energy (including planets, stars, galaxies, and light) are brought towards one another
  8. 15. all of space and its contents (including planets, stars, galaxies, and all other forms of energy and matter)
  9. 16. the relative size of things
  10. 18. a collection of gas, dust, stars, and solar systems that are held together by gravity
  11. 19. a moon phase that looks like more than a half circle from Earth
  12. 20. a moon phase where the Moon is not visible from the Earth
  13. 22. a moon phase that looks like half a circle from Earth
  14. 25. the force that pulls two objects together due to their mass
Down
  1. 1. the sun, the planets that orbit the sun, and other objects that orbit the sun
  2. 3. the tendency of an object to remain at rest or unchanged
  3. 4. the border between light and dark on the Moon
  4. 7. a moon phase that looks like less than half a circle from Earth
  5. 9. when the moon is completely dark
  6. 13. a moon phase that looks like a full circle from Earth
  7. 14. 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
  8. 17. the moon during the phases in which the part illuminated by the sun gets smaller (full moon to new moon)
  9. 21. a rocky sphere that travels around a planet
  10. 23. the circular movement of an object around its center (like a top spinning)
  11. 24. the star that is the main source of light at the center of our solar system