WGU C165: Integrated Physical Sciences

Integrated Physical Sciences: The Gen Ed Science Course Almost Everyone Meets

C165 Integrated Physical Sciences is Western Governors University's survey course in the physical sciences, and it shows up in the general education block of a wide range of WGU degree plans. It is a single course that stitches together three fields most colleges teach separately: physics, chemistry, and earth science. If your last science class was in high school and you have been dreading the natural science requirement, this is the course sitting in your term plan making you nervous. The good news is that it is a breadth course, not a depth course.

Direct answer: Pass C165 by treating it as three shorter courses instead of one big one — work through the physics section, then chemistry, then earth science, taking condensed notes on every unit as you go. Take the pre-assessment once you have covered the material, then drill the topics it flags using flashcards and self-quizzing until you can explain each concept out loud without looking. Most of the exam rewards conceptual understanding and basic unit reasoning rather than heavy math.

The course is worth 3 competency units and is assessed by a single proctored objective assessment — a multiple-choice exam you schedule and sit remotely or at a testing center. There is no paper, no lab report, and no performance assessment attached to C165. That structure is in your favor: one clear finish line, and you control when you reach it. Because WGU is competency-based, you can start studying the day your term opens and test as soon as you and your course instructor agree you are ready.

The course assumes no chemistry background and no calculus. What it does assume is that you can absorb a lot of vocabulary and a handful of relationships, and reason carefully about units, graphs, and cause and effect. Get comfortable with those things and the rest of the course is mostly steady reading.

What the Objective Assessment Actually Covers

The exam samples across the whole course rather than diving deep into one area, so expect to move between disciplines question to question. Based on the published course description and the course's own learning objectives, the material clusters into these areas:

• Scientific inquiry and measurement — how a scientific question becomes a testable hypothesis, what makes a controlled experiment valid, reading data tables and graphs to identify relationships between variables, and choosing appropriate units and measurement techniques.
• Motion and forces — describing motion using speed, velocity, and acceleration; how forces change motion; and the everyday consequences of those relationships.
• Energy and waves — forms of energy and how energy transfers and transforms, plus wave behavior and properties.
• Atomic structure and the periodic table — the parts of an atom, how elements are organized, and what the organization predicts about behavior.
• Chemical bonding and reactions — how atoms combine, the difference between physical and chemical change, and how matter is conserved through a reaction.
• States and properties of matter — solids, liquids, and gases, and what happens at the transitions between them.
• Earth's structure and processes — the composition and layers of the planet, plate tectonics, and the rock cycle.
• Earth systems in motion — atmosphere, weather, and the interacting cycles that reshape the surface over time.

Notice how much of that list is conceptual. You will do arithmetic and unit conversions, but this is not an algebra-heavy course in the way C957 Applied Algebra is. If numbers are your weak spot, that is a separate battle to fight in a separate course.

How Hard Is It, and How Long Should You Give It?

Many students describe C165 as one of the friendlier science requirements at WGU, largely because it stays at the survey level and never asks you to derive anything. Students commonly report finishing it in roughly one to three weeks of focused effort, with those who already have some science background moving faster and those returning to science after a long gap taking the longer end of that range. Treat those numbers as a planning estimate rather than a promise; your reading speed and term load move the needle.

The real difficulty in C165 is not depth; it is volume and breadth. You are asked to hold a lot of loosely connected facts in memory at once, and the exam can jump from a wave property to a mineral question in consecutive items. Students who struggle usually are not confused — they are simply thin in one of the three areas because they front-loaded the section they enjoyed and skimmed the rest. Budget your time by section, not by mood.

A Study Plan Built Around Retrieval, Not Rereading

Passive reading feels productive and does very little for a breadth exam. Build your prep around actively pulling information out of your head instead.

1. Map the course before you study it. Open the course of study and write the section titles down the left side of one page. That page becomes your progress tracker and revision index, and seeing all three disciplines on one sheet stops you from over-investing in whichever one you like best.
2. Read and condense in one pass. Work through each unit once, and as you finish it, close the material and write three to five sentences summarizing it from memory. If you cannot, reopen and reread just that piece — a little time up front that saves a great deal later.
3. Build flashcards while the material is fresh. Cards work well here because so much of C165 is definitions and relationships: what a covalent bond is, what distinguishes velocity from speed, what happens at a convergent plate boundary. Keep each card to one idea, and include a "why does this matter" line where you can.
4. Space your reviews. Revisit the physics cards while you learn chemistry, and both while you learn earth science. Ten minutes of yesterday's material before today's is enough to keep it alive.
5. Use the pre-assessment as a diagnostic, not a rehearsal. Take it after you have covered the material. Then take the coaching report seriously: the sections marked as needing work are your study list for the next few days. Do not simply retake it repeatedly hoping the score drifts up.
6. Teach it out loud. Explain the rock cycle or the structure of an atom to a partner, a pet, or an empty room. Anywhere you stall is a gap — and a gap found at your kitchen table is much cheaper than one found in the proctored session.
7. Reach out to your course instructor. WGU's CIs run cohort sessions and one-on-one calls for exactly this course, and they can tell you which areas students typically underestimate. That call is included in your tuition; use it.

Where Students Trip Up in C165

• Skipping the earth science section. It often comes last and gets the least attention, yet it carries real weight on the exam. Study it as seriously as the physics.
• Memorizing terms without meaning. Recognizing the word "isotope" is not the same as being able to say what changes and what stays the same. Exam items are frequently written to catch exactly that difference.
• Ignoring units. Unit reasoning appears throughout the course, and a surprising number of questions become easy the moment you check whether the units of an answer make sense.
• Treating the pre-assessment as the whole exam. It is a sample of the domain, not a preview of it. Study the topics it points at, not just the specific items you saw.
• Overpreparing out of anxiety. Some students spend a month on a 3-CU course they were ready for after ten days, and lose the term momentum other courses needed. When your self-quizzing is consistently solid across all three areas, schedule the exam.
• Skimming graph and data-table questions. Read the axes and the caption before the answer choices. These questions test interpretation, and the trap answers usually describe a relationship that the graph does not show.

C165 Readiness Checklist

• Can you outline the steps of a controlled scientific investigation and say what a control group is for?
• Can you read an unfamiliar graph or data table and describe the relationship between the variables in one sentence?
• Can you distinguish speed, velocity, and acceleration, and give a concrete example of each?
• Can you name the major forms of energy and describe a transformation between two of them?
• Can you label the parts of an atom and explain what the periodic table's arrangement tells you about an element?
• Can you explain the difference between a physical and a chemical change without looking it up?
• Can you describe the main types of plate boundaries and what each one produces at the surface?
• Can you walk through the rock cycle from one rock type back to itself?
• Have you taken the pre-assessment and studied every area it flagged, rather than only reviewing the questions you missed?

C165 FAQ

Is C165 an objective assessment or a performance assessment?

C165 is assessed by a single proctored objective assessment — a multiple-choice exam. There is no performance assessment, paper, or lab report attached to the course.

How many competency units is C165 worth?

Integrated Physical Sciences is a 3-competency-unit course in WGU's general education block, according to the WGU institutional catalog.

Do I need math or a chemistry background to pass?

No. The course is written for students with no prior college science. You will do basic arithmetic and unit reasoning, but it does not require algebra fluency at the level of a dedicated math course, and it assumes no previous chemistry.

Is there a lab component?

C165 as offered is a lecture-style survey course assessed by exam, without a separate hands-on lab requirement. If your degree plan specifically requires a lab science, confirm with your program mentor which course satisfies it, since requirements vary by program.

How long does C165 usually take?

Many students report completing it in about one to three weeks of consistent study. Your own pace depends on how much of the vocabulary is new to you and how many other courses you are carrying that term.

What should I do if I do not pass on the first attempt?

You get a coaching report showing which areas fell short. Contact your course instructor, rebuild your study plan around those specific sections, and retake it after you can self-quiz through them cleanly. A first-attempt miss on a general education science course is common and does not say anything about your ability to finish your degree.

Keep Your Momentum

C165 is the kind of course that goes well when you refuse to let it drag. Set a target exam date, work the three sections in order, and quiz yourself daily rather than rereading. Once it is behind you, the rest of your general education block — courses like D268 Introduction to Communication and D459 Introduction to Systems Thinking and Applications — tends to move faster because you have proven to yourself that you can learn unfamiliar material and test on it.

Browse more guides in the General Education collection, or see every course we cover in the full guide index. For official course descriptions and current program requirements, always check wgu.edu and your own degree plan.