This is another term for chemical change; it’s involves combining different substances and producing a new substance.

A. Fireworks

B. Chemical Reaction

C. Chemical Change

D. Energy

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

What information does a complete ionic equation give that the balanced equation doesn’t show?