20101006



=Benchmark Assessment ERb: Chemical/Physical Change= Follow this link for your second benchmark assessment.

=Re-cycling or Down-cycling= If you finish the Benchmark Assessment, read this, especially the second paragraph about aluminum cans!

=Plastics= We will see a slideshow dealing with the long-chain molecules we call "plastics". media type="custom" key="7112961"

=Flubber= We will make our own long-chain molecule out of common household materials.