P2

Front 1

what is nuclear fission?

Back 1

nuclear fission is when nuclear power stations generate electricity using nuclear reactors. in a nuclear reactor, a controlled chain reaction takes place in which atomic nuclei split up and release energy in the form of heat. this heat is then simply used to heat water to make steam, which is used to drive a steam turbine connected to a electricity generator. the fuel that split is usually uranium- 235n

Front 2

why is waste from nuclear power stations hard to deal with?

Back 2

because, mainly it is all radioactive waste which can cause high levels of radiation but also it is very toxic. furthermore even if they dig the ground and put the waste in it , it will still remain reactive for more than 100 years. in addition

Front 3

what is nuclear fusion?

Back 3

nuclear fusion is the opposite of nuclear fission. in nuclear fusion, the two light nuclei combine to create a larger nucleus. the most common example is two atoms of different hydrogen isotopes combining to form helium. fusion release a lot of energy even more than fission. fusion doesn't leave much radioactive waste behind and there's plenty of hydrogen about to use as fuel. the only trouble is that fusion only happens at extreme temperatures.

Front 4

what are fusion bombs?

Back 4

fusion reactions also happen in fusion bombs . you might have heard them as hydrogen, or h bombs. in fusion bombs, a fission reaction is used first to create the really high temperatures needed for fusion.

Front 5

what is the main environmental problem associated with nuclear power?

Back 5

radioactive waste

Front 6

why is it difficult to construct a working fusion reactor?

Back 6

because you need really high pressures and temperatures for it but also because it is really expensive to create as well as to maintain.