Biology vs. Chemistry vs. Physics: Which One Should You Take?
Introduction
If you're a student trying to decide between biology, chemistry, and physics, you're not alone. These three subjects form the core of most science curricula—but each one offers a very different learning experience.
At Dental School Declassified, we help pre-dental students build strong academic foundations and succeed in the sciences. Whether you're planning your high school schedule, picking college courses, or just curious about which science aligns best with your goals, this guide will help you make a confident, informed choice.
Quick Comparison Table
Biology: The Study of Life
What You’ll Learn:
Cell structure & function
Genetics and DNA
Human anatomy and physiology
Ecology and evolution
Why It’s Great:
Very relevant to medicine and dentistry
Memorization-based—great for students who like facts and terms
Less math-intensive than physics or chemistry
DAT Tip:
Biology makes up the largest portion of the DAT Natural Sciences section. You’ll need a strong understanding of systems, processes, and terminology.
✅ Best For:
Pre-dental students, aspiring health professionals, or anyone who enjoys life sciences.
Chemistry: The Central Science
What You’ll Learn:
Atomic structure and bonding
Chemical reactions
Acids and bases
Thermodynamics and equilibrium
Why It’s Great:
Chemistry explains how and why reactions happen—super useful for understanding biology and even pharmacology
Great for developing critical thinking and problem-solving skills
DAT Tip:
General and Organic Chemistry are heavily tested on the DAT, especially in the General Chemistry and Organic Chemistry sections.
✅ Best For:
Students who enjoy logic-based learning, equations, and abstract reasoning.
Physics: The Science of the Universe
What You’ll Learn:
Motion, velocity, and acceleration
Forces and Newton's Laws
Energy and conservation laws
Electricity and magnetism
Why It’s Great:
Strengthens math and reasoning skills
Less memorization, more problem-solving and formulas
DAT Tip:
Physics is not tested on the DAT, but many dental schools require it for admission. Don’t skip it!
✅ Best For:
Students with strong math backgrounds who enjoy understanding how things work at a physical level.
So… Which One Should You Take?
Here’s how to decide:
👩⚕️ If You’re Pre-Dental or Pre-Med:
➡️ Take all three over time—biology, chemistry, and physics are essential prerequisites for dental school.
Start with biology and general chemistry early. Add physics once you're comfortable with math-based problem solving.
🎓 If You're in High School Choosing a Science:
➡️ Start with biology (easier entry point), then move on to chemistry and physics as you build confidence.
Choose AP Biology or AP Chemistry if available—they’ll prepare you well for college-level science and the DAT.
📚 If You're in College:
➡️ Check your dental school prerequisites—most require 1 year of bio, 1 year of gen chem, 1 year of orgo, and 1 year of physics.
Also consider taking biochemistry and anatomy later on.
Final Thoughts
No single science is “better” than the others—they each play a unique and important role in preparing you for dental school and beyond. The best path? Build a balanced science foundation and get help when you need it.
At Dental School Declassified, our expert tutors (all licensed dentists!) can help you master any of these subjects and prepare for the DAT, pre-req exams, or science classes.
Need Help With Science Courses or DAT Prep?
🧪 One-on-one tutoring for biology, chemistry, and physics
📚 DAT prep from 98th+ percentile scorers
🎯 Personalized study plans for your pre-dental journey
