Which of the following is an example of physical change?
A) Dew forms on a blade of grass.
B) A Halloween light stick glows after shaking.
C) browning meat
D) An oxygen balloon explodes when contacted with a flame.
E) None of the above is a physical change.

Question

Quizplus · Accepted Answer

Dew forming on a blade of grass is an example of a physical change because it involves a change in the physical state of water from a gas (water vapor) to a liquid (dew) without any chemical reactions or changes to the identity of the materials involved.

B) While shaking a Halloween light stick causes a reaction that produces light, it is still considered a chemical change. 
C) Browning meat involves chemical reactions that change the color, texture, and taste of the meat. 
D) The explosion of an oxygen balloon involves a chemical reaction as well. 
E) None of the above are physical changes.

Which of the Following Is an Example of Physical Change