Here is a revision set for the nuclear reactions section: Make sure you're comfortable with the different types of reactions and the dangers of nuclear energy.

1. What are alpha and beta particles made up of? Describe the changes in the nucleus that occur with each type of emission:

2. Try the questions on this powerpoint to practice the reactions we were using earlier in the topic: https://docs.google.com/leaf?id=0BzFUvVu_WNI_MjFmYzJhODEtM2ZjNS00NTU1LTg4MzctNjY1MzE4MzMyNDM2&hl=en&authkey=CJeomOAF
Its intentionally very boring-looking so it doesnt move off the page again!

3. Name some sources of background radiation, as well as some uses for nuclear reactions.

4. Describe the reaction that takes place in a nucelar reactor, explaining how it can be controlled to avoid meltdown and how electricity is produced.  Include diagrams if you wish.