Sixth Grade First Semester Final, Puzzle One

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Across
  1. 5. galaxy where our solar system is located
  2. 7. movement around a star, typically the Sun in the case of planets in our solar system
  3. 8. collection of celestial bodies, including the Sun, eight planets, their moons, dwarf planets, asteroids, comets and other objects, all held together by the Sun’s gravitational pull
  4. 9. longest day of the year in terms of daylight hours
  5. 10. any form of water that falls from the atmosphere to the Earth's surface
  6. 11. phase in the lunar cycle when the entire face of the Moon is fully illuminated by the Sun, as seen from Earth
  7. 13. driven by a variety of forces, including wind, the Earth's rotation, differences in water temperature and salinity
  8. 15. only planet with liquid water and acceptable conditions for life
  9. 17. planet characterized by being rocky and closer to the sun than the outer planets
  10. 18. massive system of stars, gas, dust, and dark matter, all held together by gravity
  11. 20. movement of water across the Earth's surface, typically after rainfall or snowmelt, that flows into rivers, streams, lakes, or oceans
  12. 21. Objects with lower ___________________ than the fluid they are in (like oil in water) float, while objects with higher density sink
  13. 22. Large, spherical celestial body that orbits a star,
Down
  1. 1. in plants is the process by which water is absorbed by the roots from the soil, moves through the plant, and then evaporates from the leaves
  2. 2. total amount of water on Earth, including all of its liquid, solid, and gaseous forms
  3. 3. four distinct periods of the year—spring, summer, autumn (fall), and winter—that are characterized by different weather patterns, temperatures, and daylight hours
  4. 4. planet characterized by a gaseous form and is located beyond the asteroid belt
  5. 5. approximately 29 days
  6. 6. spinning of the planet around its own axis
  7. 8. underwater mountain that rises from the ocean floor but does not reach the surface of the water
  8. 12. found in rivers, lakes, streams, ponds, glaciers, and underground aquifers.
  9. 14. darkest part of a shadow cast by an opaque object, such as the Moon or Earth, during an eclipse
  10. 16. the shape, elevation, and layout of the Earth's surface, including mountains, valleys, hills, plains, rivers, lakes, and human-made structures
  11. 19. vast, all-encompassing space that contains everything—stars, planets, and galaxies