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CLEP Natural Science Practice Tests & Test Prep by Exam Edge - Exam Info



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The more you know about the CLEP Natural Science exam the better prepared you will be! Our practice tests are designed to help you master both the subject matter and the art of test-taking to be sure you are fully prepared for your exam.

Here are a few things to think about:

  • What is the CLEP Natural Science certification exam?
  • Who is Responsible for the CLEP exam?
  • Am I eligibility for the CLEP Natural Science Exam?
  • What is the best way to ensure your succes on the first try?
  • The benefits of using Exam Edge to pass your CLEP Natural Science exam.

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CLEP Natural Science - Additional Information

Education doesn't always occur in a classroom setting. If you've mastered key concepts and are hoping to receive college credit for the material you already know, CLEP tests – also known as College Level Examination Program – could be the answer. Those who perform well on CLEP tests can save significant time and money by getting credit for the concepts they have already learned. CLEP Natural Science practice tests can help prepare learners for the exam.

CLEP Natural Science - Additional Info Sample Questions

Which action will not cause a change in the concentration of the solution under normal circumstances?

Correct Answer:
adding salt to a salt solution that is saturated.


to understand which actions affect the concentration of a solution, it's important first to define what concentration means in this context. concentration refers to the amount of solute (in this case, salt) dissolved in a solvent (such as water) per unit volume of the solution. changes in either the amount of solute or the volume of solvent can alter the concentration.

let's examine the first action: adding water to a salt solution that is saturated. a saturated solution is one where the maximum amount of solute has been dissolved in the solvent at a given temperature. any additional solute added will not dissolve. when water is added to a saturated salt solution, the extra volume of water dilutes the solution, reducing the concentration of salt per unit volume. this action, therefore, changes the concentration.

the second action involves adding salt to a salt solution that is already saturated. in this scenario, since the solution can no longer dissolve any more salt, any additional salt added will remain undissolved. this results in the presence of both a saturated solution and excess undissolved salt. the concentration of the solution itself does not change because the ratio of dissolved salt to the solvent volume remains constant. hence, this action does not alter the concentration of the dissolved components of the solution.

the third action, adding water to a salt solution that is not saturated, will also change the concentration. in an unsaturated solution, there is still capacity to dissolve more solute. however, adding water increases the volume of the solvent while keeping the amount of dissolved salt constant. this action reduces the concentration of salt because the same amount of salt is now spread throughout a larger volume of water.

finally, the fourth action, boiling off some of the water from a salt solution that is not saturated, results in a decrease in the solvent's volume while the amount of dissolved salt remains unchanged. consequently, this action increases the concentration of the solution, as the salt becomes more concentrated in the lesser volume of water.

in summary, the action of adding salt to a saturated salt solution is the only one among the listed options that does not change the concentration of the solution. in this case, any additional salt does not dissolve and thus does not affect the ratio of dissolved salt to the volume of the solvent in the solution.

What is the CLEP Natural Science test?

Created to give credit to learners who have mastered concepts outside academia, the CLEP Natural Science test is popular among adult students. Just as Advanced Placement and International Baccalaureate tests give college credit to high school students for their knowledge of a given subject, CLEP tests reward students who have mastered key ideas outside of the classroom. Taking CLEP Natural Science practice exams is a good way to determine how you'd fare on the real thing.

Who should take the CLEP Natural Science test?

Anyone hoping to bypass the time and expense associated with college courses should consider taking the CLEP Natural Science test. While favored by non-traditional students, CLEP exams can be taken by anyone who feels confident in their mastery of a given subject area. High school students, adult learners, veterans, college students and professionals all take CLEP exams. No matter your educational background, CLEP Natural Science exam prep can provide you the silver bullet you need to ace your test.

How much does the CLEP Natural Science test cost?

CLEP Natural Science test registration is $87. In some cases, schools charge an additional $15 administration fee. Military service members do not have to pay for CLEP registration, but they may be subject to the administration fee. While the sticker price of the CLEP tests may seem off-putting, you'll save substantially on the tuition you would've paid for the course you're testing out of.

How many questions are on the CLEP Natural Science test?

There are 120 multiple choice questions on the CLEP Natural Science test. These must be answered within the 90-minute testing window. CLEP Natural Science test prep should be taken seriously in the weeks leading up to the real exam. Given how much time and money a passing CLEP score could save you, it's worth doing a little extra work ahead of the test to ensure you do well.

About half of the 120 questions of the CLEP Natural Science test are about biological science. You'll be tested on your knowledge of evolution, cell organization, and patterns of heredity. For the second part of the test, you'll see questions about physical science. Prepare by studying chemical elements, the solar system, laws of thermodynamics and the Earth's geologic history.

How to prepare for the CLEP Natural Science test

Exam Edge can help give you the advantage you need to pass your CLEP Natural Science test. Our CLEP Natural Science practice tests give you an idea of how you might score on the exam if it were happening today. Just familiarizing yourself with the format and structure of the test can improve your confidence levels. Some students who are passionate about natural science are eager to take the CLEP and bypass entry-level courses. Others are less enthusiastic and hope to pass the CLEP so they do not have to sit through a course they don't find valuable. Regardless of how you feel about natural science, it's important to employ the right study strategy to pass your CLEP.