Friday, November 20, 2009

Lewis Dot Structure

This week in Chemistry lab, we had a worksheet and we had to fill it with pictures of molecules bond with each other. We also had balls and sticks to help us visualize the structure. Lewis' element symbols are based on the # of valence electrons.

Friday, November 13, 2009

properties of metal

This week in chemistry we did a lab involving melting a bobby pin and melting "Onion's Alloy" in water. we saw how reheating and cooling the bobby pin affect how it bends. We heated the metal in water on a hot plate and saw how it turned liquid in water.

Thursday, November 5, 2009

Burning Wool

In Chemistry class during the lab, we burning wool. First we observed the wool before it was burned then we burned it and saw it turn into blue in gray and it had a bunch of sparks flying everywhere.

Visible Spectrum Lab

This week during Chemistry in the lab we looked through the Spec-20 and saw which colors are visible in the light and what colors we saw in the chalk after each color we recorded our data. After the lab we drew very colorful graphs and and answered some questions.