Chemistry 9-24-13 Chemical Changes & Energy

CHEMISTRY – Happy Homecoming! So how do you know if something is a chemical and change? Applications, applications! Make sure you can apply what you learned today. Ditto on the laws of conservation of mass and energy.

Good job on tracing the energy transformations from one form to another. Make sure you can apply all this on the test (and in life!). Did I mention that already?

Speaking of the law of conservation of mass – lab tomorrow! Come prepared!!

CHEMISTRY 9-25-13 Chemical Change & Energy from Tammy Skinner on Vimeo.

flickr photo by Roger Smith

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18 thoughts on “Chemistry 9-24-13 Chemical Changes & Energy

  1. The fire it that first frame is chemical change because heat light and sometimes sound are released in fires. It is also an exothermic reaction.

  2. The fire in that first frame is chemical change because heat light and sometimes sound are released in fires. It is also an exothermic reaction.

  3. Its crazy that people think they are disproving the law of conservation of mass when their masses are different. Because they didn’t take account of natural causes.

  4. I really enjoyed doing the lab today!!! It really helped me to understand how mass can be changed by putting it into different containers.

  5. the lab that we did today and yesterday was really enjoyable! You could see the law of conservation of mass actually take place.

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