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Nuclear

EC

N4 N5

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Across
1.None of these with Nuclear power
8.Use radioactivity to find out how long he's been dead
9.Nuclear power stations produce lots of .....
11.Harmful sustance produced in nuclear reactors
13.A sub atomic particle used in fission reactions
14.Two protons and two neutrons
17.Break up Uranium with a neutron
18.The nucleus of heavy elements become ..............
19.Type of reaction which occurs in nuclear reactors
20.Positive sub atomic particle
Down
1.High frequency electomagnetic radiation
2.Keeping our homes safe - but has a radioactive source!
3.Killing cancer cells with radiation
4.Radioactive chemical used to investigate the movement of chemicals in the body
5.Put surgical instruments in a nuclear reactor to
6.Another name for nuclear disintigration
7.Nuclear fuel
8.Nuclear radiation from space
10.Where beta particles come from
11.The charge on a beta particle
12.Small particle which orbits the nucleus
15.Food with higher nuclear count rate
16.Humans can develop this if exposed to high levels of radiation

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