P4h Fission
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Recognise that nuclear power stations use uranium as a fuel.
Describe the main stages in the production of electricity:
- source of energy;
- used to produce steam;
- used to produce electricity.
Describe that the decay of uranium can be a chain reaction.
Describe that a nuclear bomb is a chain reaction that has gone out of control.
Recall that materials can be made radioactive by putting them into a nuclear reactor.
Describe how domestic electricity is generated at a nuclear power station:
- nuclear reaction;
- producing heat;
- producing steam;
- turning a turbine;
- turning a generator.
Describe the process that gives out energy in a nuclear reactor as nuclear fission.
State that nuclear fission produces radioactive waste.
Describe how materials become radioactive when they absorb extra neutrons.
Describe what happens to allow Uranium to release energy:
- uranium nucleus hit by neutron;
- causes nucleus to split;
- energy released.
Explain what is meant by a chain reaction:
- when each uranium nucleus splits more than one neutron is given out;
- these neutrons can cause further uranium nuclei to split.
Explain how scientists stop nuclear reactions going out of control:
- rods placed in the reactor;
- to absorb some of the neutrons;
- allowing enough neutrons to remain to keep the process operating.
Objectives:
stuff what is important goes hereContent 3Content 4Content 5Content 2
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Homework:
Homework1
Objectives:
Content 1
Prior Learning:
Difficult Concepts:
Outline:
Suggested Practicals:
Extension Activities:
Homework:
Homework2 again