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 not a type of matter?

Vapor
Electrons
Plasma
Gas

The correct answer is: Electrons

Electrons are not considered matter because they do not have mass or volume. They are particles that make up matter, but they are not considered matter themselves. In contrast, vapor, gas, and plasma are all states of matter with defined properties.