How can you tell whether a change in matter is caused by a chemical reaction?

A specific type of physical change is a _________ change.

If two substances are mixed and a new substance is formed, what type of change is it?

Which of the following summarizes a change that takes place as a solid turns to a liquid?

When the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.

Ciara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?

Which of the following physical changes shows a change in a substance's state of matter?