TOPIC LAUNCH 11: EARTH-SUN-MOON SYSTEM REVIEW - LESSONS 1, 2, & 3

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Across
  1. 6. A term describing a model of the universe in which Earth is at the center of the revolving planets and stars.
  2. 8. An object that orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.
  3. 10. The movement of an object around another object.
  4. 12. An object that orbits a planet. Any object that orbits around another object in space.
  5. 17. The tide with the least difference between consecutive low and high tides.
  6. 20. One of the different shapes of the moon as seen from the Earth.
  7. 21. The scientific law that states that every object in the universe attracts every other object.
  8. 24. The tide with the greatest difference between consecutive low and high tides.
  9. 25. The periodic rise and fall of the level of water in the ocean.
  10. 26. A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
  11. 27. Either of the two days of the year on which the sun reaches its greatest distance from the equator.
  12. 28. Either of the two days of the year on which neither hemisphere is tilted toward or away from the sun.
Down
  1. 1. The partial or total blocking of one object in space by another.
  2. 2. The degree to which one action influences or affects another action.
  3. 3. To develop an evidence-based idea that can be tested by experimentation or investigation.
  4. 4. A streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere.
  5. 5. The path of an object as it revolves around another object in space.
  6. 7. A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
  7. 9. A pattern or grouping of stars that suggest the outline of a figure or object.
  8. 11. The darkest part of a shadow.
  9. 13. An oval shape, which may be elongated or nearly circular, the shape of the planets’ orbits.
  10. 14. The tendency of an object to resist a change in motion.
  11. 15. The part of a shadow surrounding the darkest part.
  12. 16. A term describing a model of the solar system in which the Earth and other planets revolve around the sun.
  13. 18. The attractive force between objects; the force that moves objects downhill.
  14. 19. The spinning motion of a planet on its axis.
  15. 22. An imaginary line that passes through a planet’s center and its north and south poles, about which the planet rotates.
  16. 23. Information or data that is gathered using one of the five senses – sight, touch, hearing, taste, or smell.