What are some good chemistry experiments for teaching and physical changes?
quick experiments can be done in 30 minutes to teach about the physical and chemical changes A demonstration of good and simple that can be used to teach about the difference between physical and chemical changes is to use a sheet of paper: (1) Ask students what made up the road. When the answer is like “paper” ask Know why that is paper. List the physical properties of paper to show where possible: a. B. White smooth surface c. You can write to a pen or pencil d. remains united, when they parted with reasonable force, (2) Tear the leaf into two almost equal parts. Wrinkle piece, then open out again. Ask students if it has not been a change in the role. If the answer is yes, ask whether it is still on paper. (3) List the properties of the crumpled piece of paper: a. B. White c. not so soft d. smaller than before can be written in pen or pencil with e. remains united, when they parted with reasonable force (4) Compare the properties of the original piece of paper with the torn and crump
