Earth & Space Vocabulary Crossword

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Across
  1. 3. the revolution and rotation of Earth and the Moon cause observable patterns.
  2. 7. is when an object blocks light and a dark area forms.
  3. 9. is an imaginary line through the center of a space body.
  4. 13. is an orbital path that one object in space takes around another object. It takes Earth 365 days to do this.
  5. 15. is the side of the Earth that is turned away from the Sun and experiences darkness.
  6. 16. is a star of average size. It is one of many stars we can see from Earth.
  7. 17. includes the Sun and all the objects that move around it, including the planets, their moons, and asteroids.
  8. 18. is a huge group of stars, solar systems, dust, and gases held together by gravity.
Down
  1. 1. is the shape of the lit half of the Moon and it appears to change each day as viewed from Earth.
  2. 2. is all of space and all the galaxies. This makes up the vast universe.
  3. 3. is a spherical body that moves around a star.
  4. 4. is a force that pulls all objects towards each other, including particles of gas.
  5. 5. is the side of the Earth that is turned toward the Sun lit by sunlight.
  6. 6. is one in which each part of the model is made consistently smaller or larger by the same percentage or ratio as the real object it represents.
  7. 8. is a path that one object in space takes around another object.
  8. 10. is a group of parts that work together.
  9. 11. is a natural space object that moves around a planet.
  10. 12. is something that represents a real object or system.
  11. 14. is the spinning of a space body on its axis. Earth and Moon spin on their axis.
  12. 17. is a huge sphere of very hot gasses held together by gravity.