Ms. Klein's Science Classes

October 26, 2015

Chemistry is off to a fast start.  Students have learned about moles, Avogadro's number, molar mass, and electron configuration to name a few of the many topics covered in the first 12 weeks of school.  Another important aspect of chemistry that students have been focusing on is the many individual contributions to chemistry...Democritus, Dalton, Thomson, Kelvin, Rutherford, Marsden, Geiger, Chadwick, Milikan, Bohr, deBroglie, Heisenberg, Schrodinger, Einstein, and Planck.  Each person added to the Modern Atomic Theory making chemistry what it is today.
Applied Science has just finished up their introduction to the scientific method.  Students completed four experiments:  Drops of Water on a Penny, Bess Bugs, Best Raft, and Pill Bugs.  The Best Raft experiment is always a favorite as students design and build rafts out a single piece of paper.  Then, after carefully measuring and recording those measurements, they sink their raft with pennies in a tub of water.  Students graph the data they collected to find a direct relationship between the surface area of the bottom of the raft and the number of pennies it held. Next up is the popular paper airplane making unit!