In some power stations, nuclear fission is used as a source of energy.
State what is meant by nuclear fission.
The nuclear fission reaction produces neutrons. In the power station, the neutrons may be absorbed by rods made of boron-10. Complete the nuclear equation for the absorption of a single neutron by a boron-10
nucleus with the emission of an 
-particle.
Suggest why, when neutrons are absorbed in the boron rods, the rods become hot as a result of this nuclear reaction.
