Cliff Notes
I. Classifying: putting into groups that have things in common
II. Physical change: matter stays the same, but changes in size, shape, or appearance
A. Examples: paper tearing, water melting, sharpening a pencil
B. Clues that it's a physical change: no new substance created/destroyed, shape changes, size changes, no
color change
III. Chemical change: matter changes to a different kind of matter
A. Examples: paper burning, food molding, gunpowder exploding
B. Clues that it's a chemical change: new color appears, heat or light is given off, bubbles of gas are given
off, precipitate is formed, change is difficult to reverse
Attachments
Physical and Chemical Changes - class notes in Powerpoint
Physical and Chemical Changes Worksheet (pg. 1 ONLY) - the FIRST page is the homework worksheet for class, ignore the rest of the packet |
