Chemical+and+Physical+Changes

LT 1: I can tell the difference between a chemical change and a physical change.

Below, you will encounter several websites that will illustrate physical and chemical changes. Answer your questions on your provided sheet.

A. Go to: @http://www.watchknowlearn.org/Video.aspx?VideoID=31147&CategoryID=7927

Click on the black screen and then choose "Play Video." Answer #1 and #2 on your sheet.

Go back and "Test yourself." 6-7 are considered proficient.

B. Now, go to @http://www.youtube.com/watch?v=uAsbX3K5k04

Answer #3 and #4 and #5 on your sheet.

Now, we will look at several changes on video. Examine if the changes are physical or chemical. (Sometimes the videos tell you :) )

C. Go to @http://www.youtube.com/watch?v=rU7iYYpSrlo

Answer #6-#9 on your sheet.

D. The following are all chemical changes. You should provide evidence that it is a chemical change.You will want to reference the five pieces of evidence from yesterday's work.

1. @http://www.youtube.com/watch?v=2pXyJ7P0B0k

Answer #10 about the decomposition of Mercury(II) Thiocyanate.

2. @http://www.youtube.com/watch?v=dmcfsEEogxs

Answer #11 about the reaction of sodium and water.

3. @http://www.youtube.com/watch?v=jdH24GFUOlg

Answer #12 about the combustion of acetylene.

4. @http://www.youtube.com/watch?v=8RmVwz2fNGc

Answer #13 about the combination of silver nitrate and sodium chloride.

E. Lastly, check your understanding with the following quiz site.

@http://www.quia.com/quiz/303980.html?AP_rand=434041041