1. Write some type of definition of "charge". It's ok to look something up, but try to formulate your own definition of charge first.
2. Find the actual distance between an electron and a proton in a typical atom - it's ok to use hydrogen as your example. Find out the average speed, too, if you can.
3. Are protons, electrons and neutrons are "fundamental"? That is, can any of them be broken into something smaller? If so, talk about it.
4. Review the rotating 2x4 demonstration from today - why does the board rotate?
5. What is the official standard unit for charge? How is it defined? This may be tough to put into words. Try your best.
6. How do the mass of proton, neutron and electron compare? Look up their values, if that's helpful.
*7. (If time allows.) Look up the Heisenberg Uncertainty Principle. How does it relate to the measuring of particles? If you don't follow it, keep in mind that it was new and challenging enough to win Heisenberg a Nobel Prize (so don't feel bad).
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