Which of the following is an example of a physical change but not a chemical change?
A log gives off heat and light as it burns. A tree stores energy from the Sun in its fruit. A penny lost in the grass slowly changes color. A water pipe freezes and cracks on a cold night.
Question: Which of the following is an example of a physical change but 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.
Answer: