section 6: Radiation Crossword

This printable crossword puzzle on the topic of Physics has 13 clues. Answers range from 4 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The time taken for the activity to decrease by a factor of 1/2
a radiation that doesn't penetrate
How many neutrons, that is too many.
A massless form of ionising radiation
naturally occurring radioactive material and particles from space give rise to this form of radiation
An atom will decay and give out radiation if it is ......
I have a negative charge and move quickly
2 electrons, 2 protons and 2 neutrons
because of these errors in genetic code cells divide uncontrollably and cause cancer
I contain radioactive atoms but shouldn't. I am ......
exposure to radiation
nuclei broken apart in a controlled chain reaction to produce heat and energy
joining small nuclei, the source of energy in stars