The AP Environmental Science (APES) exam is one of the most popular Advanced Placement science courses, designed for students who want to explore the interconnections between the natural world, human society, and environmental challenges. Whether you’re passionate about climate change, biodiversity, energy resources, or sustainability, APES provides a strong foundation in environmental studies while helping you earn potential college credit.
In this RevisionDojo guide, you’ll find everything you need to know about the APES exam format, topics, scoring, and study strategies so you can confidently prepare for test day.
AP Environmental Science Exam Overview
- Exam Date (2025): Thursday, May 8, 2025 (8:00 AM local time)
- Duration: 2 hours 40 minutes
- Sections: Multiple Choice (MCQs) + Free-Response (FRQs)
- Allowed Calculator: Scientific or graphing calculator (College Board approved)
AP Environmental Science Exam Format
The APES exam is split into two main sections:
Section I – Multiple Choice (MCQs)
- Number of Questions: 80
- Time: 1 hour 30 minutes
- Weight: 60% of exam score
- Question Types:
- Standalone questions
- Sets with graphs, charts, or data tables
- Paired questions assessing cause-and-effect relationships
Section II – Free Response (FRQs)
- Number of Questions: 3
- Time: 1 hour 10 minutes
- Weight: 40% of exam score
- FRQ Breakdown:
- Question 1: Design an investigation (often includes experimental design)
- Question 2: Analyze an environmental problem (with calculations)
- Question 3: Propose a solution to an environmental issue
AP Environmental Science Topics & Unit Breakdown
The APES curriculum is divided into 9 units, each with a specific exam weight:
- Unit 1: Ecosystems (6–8%)
- Unit 2: Biodiversity (6–8%)
- Unit 3: Populations (10–15%)
- Unit 4: Earth Systems and Resources (10–15%)
- Unit 5: Land and Water Use (10–15%)
- Unit 6: Energy Resources and Consumption (10–15%)
- Unit 7: Atmospheric Pollution (7–10%)
- Unit 8: Aquatic and Terrestrial Pollution (7–10%)
- Unit 9: Global Change (15–20%)
AP Environmental Science Scoring
The APES exam is scored on a 1–5 scale. Your raw score (MCQ + FRQ points) is converted into this AP score.
- MCQ Scoring: Each correct answer is worth 1 point. No penalty for guessing.
- FRQ Scoring: Graded with a specific rubric that awards points for correct content, calculations, and explanations.
- Score Conversion: Varies slightly each year, but generally:
- 5: 75–80%+ of total possible points
- 4: ~60–75%
- 3: ~45–60%
- 2–1: Below ~45%
How to Prepare for the APES Exam
- Master the Vocabulary: Many APES questions are term-heavy; use flashcards or Quizlet.
- Practice Data Analysis: Be comfortable with interpreting graphs, maps, and statistical data.
- Review Past FRQs: The College Board provides free APES FRQs with scoring guidelines.
- Simulate Full Tests: Practice under timed conditions to build stamina.
- Understand Environmental Laws: The exam often tests knowledge of U.S. and global environmental regulations.
APES Exam Tips from 5-Scorers
- Always show your work on FRQs, even if you’re unsure. Partial credit is possible.
- Link human impacts to ecological consequences in explanations.
- Keep your answers clear and concise—graders have limited time.
- Update your knowledge with recent environmental events; they can be referenced in answers.
FAQ – AP Environmental Science Exam
Q: Is APES a hard AP exam?
A: It’s considered moderately difficult—pass rates are average compared to other AP sciences, but success depends heavily on how you prepare.
Q: Can I use a calculator on the APES exam?
A: Yes, both scientific and graphing calculators approved by the College Board are allowed.
Q: Are math skills important for APES?
A: Yes, but the math is straightforward—percentages, basic algebra, and unit conversions.
Final Word from RevisionDojo:
The AP Environmental Science exam rewards students who combine strong conceptual understanding with the ability to apply knowledge to real-world environmental issues. By following a structured study plan and practicing with past College Board materials, you can maximize your score potential.
