CHEMISTRY

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Across
  1. 3. they are some kind of granular substances which helps in scraping away bacteria and plaque from our teeth.
  2. 4. the formation of a mixture involves only this type of change.
  3. 7. water fit for drinking is known as
  4. 8. thought to be a magical portion,bringing wealth, health and immortality.
  5. 9. Products obtained from petroleum using chemical processes is called
  6. 11. main component in Talcum powder other than talc
  7. 13. Latin name for potassium
  8. 14. latin word for paper
  9. 15. it is a solid which is dissolved in a solvent
Down
  1. 1. an english engineer who invented the eraser in 1770
  2. 2. elements which have some properties of metal and some of non-metal is called
  3. 5. paper is obtained from which fibres of plants?
  4. 6. which element is present in the fire crackers so that they give us a dazzling flame when we burst it.
  5. 10. this metal starts with letter 'C' and ends with 'T' and is present in the iron pillar of Qutub Minar
  6. 12. scientist who is also known as the father of modern chemistry.