Radiation

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Across
  1. 1. It can go through almost everything, even quite thick lead.
  2. 2. Radiation is said to be "_______ing radiation" when it can damage cells by knocking electrons out of them.
  3. 4. A type of radiation used in hospitals and by dentists
  4. 8. A gas that is radioactive and often leaks from the ground into houses
  5. 9. A type of ionising radiation that is responsible for suntans
  6. 10. type of radiation used by your cell phone (and cookers)
  7. 12. another name for heat radiation
  8. 13. a heavy metal used for shielding against radiation
Down
  1. 1. Instrument used for measuring radioactivity
  2. 3. Type of radiation used in paper mills to control thickness
  3. 5. A disease caused by, and treated with, radiation
  4. 6. The most dangerous type of radiation if it gets inside the body
  5. 7. A naturally occurring low level of radiation that is all around us.
  6. 11. Name given to a radioactive substance used in medical tests to see what is wrong in a patients body.