Credit: www.middleschoolscience.com |
Physical Changes - Chromatography (dot of black marker *Mr. Sketch or Vis a Vis on a coffee filter dipped in water) students explain why black markers are not just black ink - mixture that can be separated.
Top - Vis a Vis, Bottom - Mr. Sketch (left black) (right purple) |
Chemical Changes - Exploding Bags (Ziploc bags with baking soda wrapped in toilet paper, dropped in vinegar) students should describe the "signs" of a chemical change
http://www.stevespanglerscience.com |
Watched a video (Brain Pop - Property Changes, Generation Genius: Chemical vs Physical Changes or Chemical Reactions *subscription required)
Next: Getting ready for our 1st Quarter Exams...
Next: Getting ready for our 1st Quarter Exams...