Electricity and Magnets

Today we're going to conclude our introduction to circuits and start ooking at magnets.  Answer the following in you books -

1. what are the two ends of a magnet? - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise2.shtml 
2. what is one way of creating a magnetic field with electricity?  - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise4.shtml
3. what is one common use for electromagnets? - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise5.shtml
4. Try this activity - what materials can the magnet pick up? - http://www.bbc.co.uk/schools/scienceclips/ages/7_8/magnets_springs.shtml
5. Which ends of magnets stick together? - http://www.coolmath-games.com/0-magnets/index.html
6. Which two kinds of particles are attracted to each other in this game? What repels what? - http://www.candystand.com/play/magnets
7. What charge does an electron have? - http://wiki.answers.com/Q/What_charge_does_an_electron_have
8. Extension - If an object (like a piece of plastic) had a lot of eletrons on it, would it attract more electrons or not? explain your answer.
9. If the electrons (red dots) are attracted to the blue circle, what charge must it have? - http://www.mjgames-online.com/games/electrons.php