Natural Science CLEP Prep Practice Exam

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Prepare for the Natural Science CLEP Exam with comprehensive quizzes and multiple choice questions. Each question includes hints and explanations to help you succeed. Ace your exam!

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.