Monday, December 3, 2012

Well, today was very...loud. l=/
But the concept was good, and I think you-all got it:

A chemical reaction is when the starting molecules rearrange themselves into different molecules, which have different properties.  In this experiment we saw that combining baking soda with calcium chloride (in the presence of water) produced  salt, chalk, carbon dioxide and a water molecule.

Go back to your worksheet and try to finish whatever parts you did not do in class.  We will go over "page 6" - writing the chemical formulas - in class on Thursday.  You can build 2 made-up molecules, write the formulas, put them into a baggie, bring to class, and we will test each other on them.  OK?  15 pts.

Next, some brainPOP.com: Do the regular- watch the movie, fill out the vocabulary sheet, take the quiz, and then if you are an older  student (6-8th grade) read the FYI pages.
username/passwork:  pcshome   ilearnathome    15pts. each

http://www.brainpop.com/science/matterandchemistry/compoundsandmixtures/

/http://www.brainpop.com/science/matterandchemistry/chemicalequations/

Lastly, I want you to collect a sample of your pumpkin to bring to class on Thursday-- just a teaspoon or so, put in a small tupperware type container.  We will look at these under the microscope; who knows what we'll see???  5 pts.

What are the two things to bring to class? 
-pumpkin sample
-Two made-up Lego molecules  (less that 10 legos each)

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