Classes this week will be learning about nuclear decay; specifically half lives, shielding, and different decay products. We will be doing a lab with half-lives the 2nd class this week; bring your lab journal!
Elements quiz 2nd class this week as well; plan to memorize #1-40 plus the following: Ag, Sn, I, Kr, Pu, Ba, W, Pt, Au, Hg, Pb, Xe, Bi, Rn, U
The quiz will be graded just like a lab, where it won't penalize you if you do poorly. You will need to know symbols from names and names from symbols, and spelling.
2 New optional Assignments:
1. Make a brief presentation (and present to class) about how a Geiger tube works(IN YOUR OWN WORDS). Present by the first class meeting next week (Mon-Wed April 29/30, May1)
2. Research either Cs - 137 or Sr - 90 (the radioactive samples we are using in lab this week) and present to class (IN YOUR OWN WORDS): How they decay, where they come from, where we find these isotopes in our environment (due to humans) and any other interesting historical or health facts associated with these. This will also be presented to class (visual aids would help with some things) the first class meeting next week.
Watch for meteors tonight and tomorrow morning; they are still out there but not in huge numbers.
Mark your calendar or set a cell phone reminder: Lunar Eclipse May 25 10pm see NASA link
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