Natural Sciences CLEP

Science CLEP Natural Sciences CLEP

Khan Academy: Biology
Khan Academy: Organic Chemistry
Khan Academy: Physics
Khan Academy: Cosmology and astronomy
Khan Academy: Chemistry
By Khan Academy
Online Course

Khan Academy is one of the leaders in free online education, with the majority of courses being taught by Salman Khan, the site’s founder. It offers a personalized learning resource for all ages delivering interactive courses via videos and practice exercises.
These tutorials cover all the key topics required for the Natural Sciences CLEP exam, and caters for all levels, allowing you to move forward or back depending on your level of understanding.

Introduction to Biology - The Secret of Life
By MIT via edX
Self-paced MOOC
Workload: 120 hours

7.00x is an introductory level biology course hosted by professor Eric Lander, who was one of the leaders of the Human Genome Project. The course content reflects the topics taught in the MIT introductory biology courses and many biology courses across the world. As a student, you will first focus on the structure and function of macromolecules such as DNA, RNA and proteins. You will discover how changes in the structure of some of these macromolecules alter their functions and what the implications of such changes have on human health. As you continue in the course, you will apply an understanding of heredity and information flow within cells to human health and disease and will learn about molecular biological techniques and their potential to impact our changing world. After you complete this course, you will have a foundation in biology that will allow you to understand the remarkable medical revolution going on today.

MIT 7.01SC Fundamentals of Biology
By MIT via YouTube
Open Courseware

Fundamentals of Biology focuses on the basic principles of biochemistry, molecular biology, genetics, and recombinant DNA. These principles are necessary to understanding the basic mechanisms of life and anchor the biological knowledge that is required to understand many of the challenges in everyday life, from human health and disease to loss of biodiversity and environmental quality.

Biology 1A, 001 - Spring 2015
By The University of California, Berkeley via YouTube
Open Courseware
Video & Audio Podcasts

General introduction to cell structure and function, molecular and organismal genetics, animal development, form and function.

Biology 1B, 001 - Spring 2015
By The University of California, Berkeley via YouTube
Open Courseware
Video & Audio Podcasts

General introduction to plant development, form, and function; population genetics, ecology, and evolution. Intended for students majoring in the biological sciences, but open to all qualified students.

Preparation for General Chemistry
By Rutgers the State University of New Jersey via Coursera
Scheduled MOOC
Workload: 48 hours

The course develops critical thinking and analytic problem solving skills within a chemistry context in order to prepare students for success in college-level General Chemistry—a key gateway class required for many undergraduate majors.


Week 1 - Introduction and Warm Up: Preliminary Assessment given to appraise current knowledge and help set goals; introductory material, including matter and energy, classification and properties of matter, scientific measurement and units, significant figures, dimensional analysis, and problem-solving strategies.

Week 2 - Boot-Camp I:
Understanding atomic structure and quantum theory, which includes properties of waves, wave-particle duality, the interaction of radiation and matter, the photoelectric effect and the Bohr atom model.

Week 3 - Boot-Camp II: Introducing the concept of mole and understanding how compounds form, by differentiating ionic and covalent bonding, learning how to write molecular and empirical formulas and how to determine percent composition of compounds. Introducing solutions and how to measure their concentration.

Week 4 - Boot-Camp III: Move on to chemical reactions, by understanding how to write balanced chemical equations, use them to perform various stoichiometric calculations and determine the yield of reactions; learning the different types of reactions, including combustion, precipitation, and acid-base reactions.

Week 5 - Boot-Camp IV: Introduction to the thermodynamics of reactions, by discussing energy and energy changes, heat, work, enthalpy, calorimetry, and Hess's Law.

Week 6 - Final Exam Preparation: Reviewing of concepts from Weeks 1-5, in preparation for the final examination.

Introduction to Chemistry: Reactions and Ratios
By Duke University via Coursera
Scheduled MOOC
Workload: 80 hours

This is the first part of a two part introductory course for students with limited or no background in chemistry; in this part of the course, chemical reactions, stoichiometry, the periodic table, periodic trends, nomenclature, and chemical problem solving will be emphasized. The goal of the course sequence is to prepare students for further study in chemistry as needed for many science, health, and policy professions. Topics include introductions to atoms, molecules, ions, the periodic table, stoichiometry, and chemical reactions. The pattern of the use of ratios in chemical problem solving will be emphasized.

Introduction to Chemistry: Structures and Solutions
By Duke University via Coursera
Scheduled MOOC
Workload: 80 hours

This is the second part of a two-part introductory course for students with limited or no background in chemistry; it may be taken independently of the first part as much of the material is modular in nature. In this part of the course, atomic and molecular structures, interactions of atoms with light, phases of matter, solutions, and quantitative chemical problem solving will be emphasized. The goal of the course sequence is to prepare students for further study in chemistry as needed for many science, health, and policy professions. Topics include introductions to electron configurations and transitions, Lewis dot structures, valence shell electron pair repulsion theory, phases and the energetics of phase transitions, and calculations involving gas laws and solutions.

Intro to Physics
By Udacity
Online Course
Workload: 48 hours

Study physics abroad in Europe -- virtually! Learn the basics of physics on location in Italy, the Netherlands and the UK, by answering some of the discipline's major questions from over the last 2000 years.
This unique class gives you the chance to see the sites where physics history was made and learn some of the subject's most captivating concepts.
This course is suitable for anyone; a basic understanding of algebra is suggested.


Lesson 1: How can we measure the circumference of the Earth?
Basics of geometry and trigonometry

Lesson 2: How do objects move?
Data analysis and kinematics

Lesson 3: What causes motion?
Forces, acceleration, and Newton’s Laws

Lesson 4: How can we use motion?
Work, energy, and simple machines

Lesson 5: How can we determine our longitude at sea?
Simple harmonic motion

Lesson 6: What is electricity?
Charge and electric fields

Lesson 7: What is left to discover?
Modern physics and open questions

Physics 1 for Physical Science Majors
University of Colorado Boulder via Coursera
Scheduled MOOC
Workload: 144 hours

This course is a rigorous introduction to classical mechanics, which is the study of forces and motion. How does gravity control the motion of the planets around the sun or the motion of a projectile fired from a cannon? Why does a spinning skater spin faster when she pulls her arms in? Why is a perpetual motion machine impossible? These are the kinds of questions which can be answered with classical mechanics, which was first formulated by Isaac Newton around 1666. Classical, or Newtonian Mechanics is the oldest branch of physics, but it will never go out of style. It remains the foundation of our understanding of the physical world and is constantly used by engineers and scientists. There is a space probe, called New Horizons, that is on its way to Pluto right now, and it will arrive on July 14, 2015, exactly on time and on target, because its path has been computed using classical mechanics, and nothing more.


Week 1: 1D motion: speed, velocity and acceleration
Week 2: 1D motion continued. Vector Math.
Week 3: Motion in 2D.
Week 4: Newton’s Laws.
Week 5: Applications of Newton’s Laws. Friction.
Week 6: Work and Energy.
Week 7: Conservation of Energy.
Week 8: Gravity and orbits.
Week 9: Conservation of Momentum and Collisions.
Week 10: Rotational Motion.
Week 11: Conservation of Angular Momentum. Static Equilibrium.
Week 12: Simple Harmonic Motion.

Galaxies and Cosmology
Caltech via Coursera
Scheduled MOOC
Workload: 80 hours

This class is an introduction to the modern extragalactic astronomy and cosmology, i.e., the part of astrophysics that deals with the structure and evolution of the universe as a whole, and its major constituents: dark matter, dark energy, galaxies, quasars, large-scale structure, and intergalactic gas. It will cover the subjects including: relativistic cosmological models and their parameters, extragalactic distance scale, cosmological tests, composition of the universe, dark matter, and dark energy; the hot big bang, cosmic nucleosynthesis, recombination, and cosmic microwave background; formation and evolution of structure in the universe; galaxy clusters, large-scale structure and its evolution; galaxies, their properties and fundamental correlations; formation and evolution of galaxies; star formation history of the universe; quasars and other active galactic nuclei, and their evolution; structure and evolution of the intergalactic medium; diffuse extragalactic backgrounds; the first stars, galaxies, and the reionization era. It corresponds to the Ay 21 class taught at Caltech.


  • Chapter 1: Introduction
  • Chapter 2: Basics of Relativistic Cosmology
  • Chapter 3: Cosmological Models
  • Chapter 4: Distance Scale, Age of the Universe, and the Universal Expansion
  • Chapter 5: Cosmological Tests
  • Chapter 6: The hot Big Bang and the Thermal History of the Universe
  • Chapter 7: Contents of the Universe
  • Chapter 8: Structure Formation: Theory
  • Chapter 9: Observations of Large Scale Structure
  • Chapter 10: Large Scale Structure and Clusters of Galaxies
  • Chapter 11: Galaxies, Their Structure and Properties (I)
  • Chapter 12: Galaxies, Their Structure and Properties (II)
  • Chapter 13: Galaxy Evolution
  • Chapter 14: Chemical Evolution, Intergalactic Medium and its Evolution
  • Chapter 15: Galaxy Formation
  • Chapter 16: Quasars and Active Galactic Nuclei: Phenomenology and Physics
  • Chapter 17: Quasars and AGN: Unification, Evolution, High-Energy Backgrounds