P2

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Across
  1. 3. this signal varies between 0 and 1
  2. 6. Highest energy electromagnetic wave
  3. 7. Scientists can use computer models to understand what.
  4. 8. What is removed from an atom by ionising radiation
  5. 9. The electromagnetic radiation with the largest wavelength
  6. 10. name the process that removes CO2 from the atmosphere by plants
  7. 12. name one of the green house gases
  8. 16. What is the common metal used to absorb X-ray radiation.
  9. 17. Ionising radiation can cause
  10. 18. non ionising radiation can cause what.
Down
  1. 1. This radiation is used for examining bones.
  2. 2. What type of radiation makes water molecules vibrate
  3. 4. Number of photons x Energy of each photon
  4. 5. The burning of what by humans has lead to the increase in CO2 in the last 200 years.
  5. 7. radio waves are normally used for
  6. 10. Light can be thought of either a wave or a particle which is called a what?
  7. 11. Infrared and light can be transmitted down what.
  8. 13. What type of materials emit gamma radiation.
  9. 14. which molecule absorbs ultra-violet radiation in the atmosphere
  10. 15. The intensity of light does what with increasing distance