Thursday, November 20, 2008

Nov 19-20 The Official First Day of Chemistry

Today we finished refreshing our atoms and then started with chemical bonding.

First we completed the from glue to goop activity (page 2 in the textbook). We mixed watered down glue (50/50 mix of water and elmers) with a dilute borax solution (4 grams of borax to 100 mL's of water). It made a silly putty like material.

We then drew lots of Bohr models of atoms--we did hydrogen, helium, lithium, sodium, chlorine, neon and potassium.

Finally, we filled a balloon full of hydrogen gas and blew it up--and we have film to prove it!

http://www.youtube.com/watch?v=_ImFhVq5AOU


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