Which is most likely a physical change? cutting a substance into four pieces burning a substance into ash and smoke reacting a substance chemically to form a new substance combining a substance with water to make rust

## Step 1<br />A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. This means that the substance's chemical composition remains the same, even though its physical appearance may change.<br /><br />## Step 2<br />Looking at the options, we can see that "cutting a substance into four pieces" is a physical change. This is because the substance's chemical composition remains the same, even though its physical appearance changes.<br /><br />## Step 3<br />On the other hand, "burning a substance into ash and smoke", "reacting a substance chemically to form a new substance", and "combining a substance with water to make rust" are all examples of chemical changes. This is because they result in new substances with different chemical compositions.