20121015



=Pringle Challenge=
 * Bring your Pringle Container tomorrow!
 * Bring your Documentation (strengths/weakness, measurements, test results)!
 * We will measure your containers (for the contest) and discuss your Production & Three Rs (for your grade).

=Decay & Dating= The two types of radioactive decay demonstrate
 * unpredictable behavior, when you are looking at a single atom;
 * predictable behavior, when you are looking at a large number of atoms.

We use this behavior to figure out how old things are. Two simulations by PhET will show what I mean! Don't forget to get FULL CREDIT for ERg: Isotopes. | =Radioactive Dating Game= =Geiger Counters & Salt= If time allows, we will try real geiger counters.

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