Physical+and+Chemical+Changes+(B4)

1. Great tutorial reviewing chemical and physical change
[|Chemical and Physical Changes -Tutorial]

2. Relationships and Levels of Organization in Matter (Honours) (Submitted by G.Davidson - SD#22 Vernon - retired)

3. The Never Ending Story. Explains why atoms are in perpetual motion. (Submitted by G.Davidson - SD#22 Vernon - retired)

4. Critical thinking addition to Activity 2.1 Activity 2.1 The thickness of aluminum foil

The consistent results obtained with this technique make it easy to compare various brands and types of aluminum foil while conducting the experiment. Recently, for example, my class compared the thickness of one brand's regular aluminum to their "heavy duty" product. Students determined a significant difference in thickness, and spent some time judging the value of paying more for the heavier product.

5. Squiggle Ball KMT Model A group of squiggle balls model the motion of atoms in solids, liquids, and gases.