Changes in Matter — Unit test Answers

Which process is a chemical change?

A student is using a copper strip and a strong chlorine solution in her experiment. Which of these is a chemical property of one of her materials?

Which statement describes an intensive property of matter?

Jenna took an open bowl of leftover mashed potatoes from the refrigerator and noticed a difference in smell. She determined that chemical changes occurred since the potatoes were first placed there.

Which is the process by which a solid changes to a liquid?

What is an example of a physical change?

Michael has a substance that he puts in Container 1. The substance has a volume of 5 cubic meters. He then puts the substance in Container 2, and it now has a volume of 10 cubic meters. In which phase(s) is the substance?

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid. What physical property of the material is Serena most likely observing?

Brian made this table to organize his notes on changes of state.Which change of state has the wrong energy change listed?