ERb_FullCredit



=The Benchmark Assessment asked this:= Which of the following statements accurately uses the concepts of chemical and physical changes?

Defend your answer! Share your thought process!
 * A: Mixing different metals makes an alloy, which represents a physical change.
 * B: Turning cement into concrete involves a chemical change for both cement and water.
 * C: Smelting iron ore to produce iron is a chemical change.
 * D: Wait a minute! All of these statements are accurate!

The Following Answers Were Awarded Full Credit. Can you tell why? media type="custom" key="7174915"