Question

when a physical change occurs, a substances physical properties may change, but its chemical properties will not. it will still have the same molecules arranged in the same way. for example, lets say you saw a log in half. that will change the size of the log, but not its chemical makeup. what are other examples of physical changes? crumbling aluminum foil will change the foils texture, crushing an ice cube will change the ices volume, and heating an ice cube will change its state of matter. all of those changes are physical. state of matter changes can be tricky, but remember those are physical changes, too. if a substance is just moving between solid, liquid and gas states, its chemical composition remains the same. which of the following would be the best title for this passage? choose one option a what kinds of changes are physical? b crumbling foil c solids, liquids and gases d what is matter?

Explanation:

The passage defines physical changes, gives examples like sawing a log, crumbling foil, crushing an ice cube, and mentions state - of - matter changes (which are also physical). It focuses on identifying what physical changes are. Option B “Crumbling Foil” is just one example. Option C “Solids, Liquids and Gases” is only a part of the content (state - of - matter changes). Option D “What is Matter?” is not the topic. Option A “What Kinds of Changes are Physical?” encompasses the whole content of the passage.

Answer:

A. What Kinds of Changes are Physical?