Natural Science CLEP Prep Practice Exam

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Prepare for the CLEP Natural Science Exam with our comprehensive study materials and practice questions. Test your knowledge and ace the exam by mastering key concepts.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is a change of state of matter?

Reacting
Melting
Evaporating
Transforming

The correct answer is: Melting

Melting is a physical change of state where a solid substance changes into a liquid form due to an increase in temperature. Option A, reacting, is not a change of state but a chemical reaction where substances combine or break apart to form a new substance. Option C, evaporating, is also a change of state as a liquid changes into a gas due to an increase in temperature. Option D, transforming, is not a change of state but a general term that could refer to any kind of change, including chemical or physical changes. Therefore, it is not the most specific or accurate answer.