Atoms and Matter

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Across
  1. 4. A substance made up of atoms of two or more different elements joined by chemical bonds
  2. 5. anything that has mass and takes up space
  3. 7. A process that separates materials based on the size of their particles.
  4. 8. Mixture that is different throughout.
  5. 11. negatively charged particles
  6. 12. Building blocks of matter
  7. 15. (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
  8. 16. A state of matter with no definite shape or volume
  9. 17. To pass dry ingredients through a mesh screen to add air or to combine ingredients
  10. 18. positively charged particles
Down
  1. 1. A state of matter that has no definite shape but has a definite volume
  2. 2. Liquid to gas
  3. 3. protons neutrons electrons
  4. 6. a mixture in which the composition is uniform throughout
  5. 9. A pure substance made of only one kind of atom
  6. 10. the particles of the nucleus that have no charge
  7. 13. A measure of the amount of matter in an object
  8. 14. Mass / Volume
  9. 17. definite shape and volume