Utah Nail Technician Theory Practice Test

Which term best describes a change in which no new substance is formed?

Chemical Change Phase Change Reversible Change Physical Change

Correct Answer:

Physical Change

Explanation:

When a change happens but no new substance is formed, the material’s identity stays the same even if its form or state changes. This is called a physical change, because you’re altering appearance, shape, or phase (like solid to liquid to gas) without changing what the substance is. For example, ice melting into water or metal being bent changes how it looks, but it’s still the same substance. A chemical change, by contrast, creates new substances with different properties. A phase change is a type of physical change focused specifically on changing state, but the general term that covers all such changes is physical change.

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