Science Crossword

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Across
  1. 1. Particles are tightly packed
  2. 3. A table of 188 elements
  3. 6. The amount of gravity on an object
  4. 7. the Basic building block of all matter
  5. 8. A pure substance
  6. 11. Heat is removed from gas changing to liquid
  7. 12. The amount of space an object takes up
  8. 15. Can be observed using your senses
  9. 17. A measure of how hot or cold something is
  10. 18. The SI unit for mass
  11. 19. A group of atoms bonded together
Down
  1. 1. A single type of matter that is pure and made of one type of atom
  2. 2. The amount of force exerted per unit area of a surface
  3. 4. A characteristic of how a pure substance can change into other substances
  4. 5. Amount of mass per unit of volume
  5. 9. The study of the properties of matter and how it changes
  6. 10. The amount of matter in an object
  7. 13. Anything that has mass and takes up space
  8. 14. Particles move freely and rarely touch
  9. 16. Particles are further apart and flow together