Semester 1 Review

1234567891011121314151617181920212223242526272829
Across
  1. 3. ______ brightness is how bright a star really is
  2. 6. amount of matter in a given space
  3. 7. amount of space something occupies
  4. 9. AU is distance between ___ and Sun
  5. 11. ______ brightness is how bright a star looks from Earth
  6. 12. force of gravity
  7. 14. when the north has fall, the south has
  8. 16. distance between earth and sun
  9. 21. distance light travels in one year
  10. 22. type of eclipse during full moon
  11. 23. causes tides
  12. 26. elements in a group share similar _____.
  13. 27. negatively charged subatomic particle
  14. 28. amount of matter in a substance
Down
  1. 1. stars with this color are the hottest
  2. 2. stars with this color are the coolest
  3. 4. dense things do ____.
  4. 5. contains all of existence; made of billions of galaxies
  5. 8. dense things do not ____ .
  6. 10. weak tide when Earth, Moon, and Sun are at L shape
  7. 11. smallest unit of matter
  8. 12. part of lunar cycle when light grows more visible
  9. 13. billions of stars make a
  10. 14. source of light in solar system
  11. 15. subatomic particle with no charge
  12. 17. part of lunar cycle when light fades away
  13. 18. pure substance that makes up living and nonliving things
  14. 19. unit for amount of matter in a substance
  15. 20. mass is 8g; volume is 2 mL; density is ____ g/mL
  16. 24. unit for weight
  17. 25. center of an atom
  18. 26. positively charged subatomic particle in nucleus
  19. 29. type of eclipse during new moon