MATTER AROUND US

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Across
  1. 2. Gases ______ into liquids
  2. 3. ____ can change the state of matter.
  3. 5. Particles are ___packed in gases
  4. 7. During a chemical reaction, the sum of the _________ of the reactants and products remain unchanged. (mass)
  5. 9. Matter is made up of ____.
  6. 10. The abbreviation used for lengthy names of elements are termed as their _______.
  7. 12. As the volume of a specific amount of gas decreases, it’s pressure _______.
  8. 13. What is the universe made of?
  9. 15. Clusters of atoms that act as an ion are called __________ ions.
  10. 16. The smell of perfume gradually spreads across a room due to ______.
  11. 17. ______Changes state from solid to liquid.
Down
  1. 1. _______ is the 4th state of matter
  2. 4. _______ is the 4th state of matter
  3. 6. __________ is the change of gaseous state directly to solid state without going through liquid state, and vice-versa
  4. 8. Solid, liquid and gas are called the three _______ of matter
  5. 10. Rapid evaporation depends on the ______ area exposed to atmosphere.
  6. 11. Liquids that move quickly downhill are described as having low_____.
  7. 14. Evaporation causes __________.
  8. 17. the SI unit of amount of a substance is __________.