Chemistry

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Across
  1. 3. anything that takes up space and has mass
  2. 5. electromagnetic radiation that brighten the room
  3. 8. of best fit a line that best represents the trend in data
  4. 9. the part of matter can be observed or measured
  5. 12. data based around number and percentages
  6. 13. the number before the element
  7. 16. cannot be created or destroyed
  8. 17. heat absorbed
  9. 18. a small number below the line
  10. 20. a mixture where the substances mix together
  11. 21. atoms are spaced apart and roam freely
Down
  1. 1. a mixture that contains substances which don't mix
  2. 2. how tight the matter is packed inside an object
  3. 4. simplest form of matter
  4. 6. composed of one atom, cannot be broken down
  5. 7. paying attention to something
  6. 10. the combination of two or more substances
  7. 11. measurement of the amount of matter in an object
  8. 14. releases heat
  9. 15. when two or more elements are combined to make a pure substance
  10. 19. non-numerical, explores the why and how