Even if you’re not pursuing a STEM degree, science disciplines play a big role in your academic path. You may need to take some science courses to fulfill your gen ed requirements, get the necessary prerequisites for a career in healthcare, or improve your scientific literacy.
Whatever the reason, college science classes help you build skills that support your academic, professional, and personal growth. Find out why science courses matter, the types of science classes you may take, how different majors approach science requirements, and how to choose the right online science course for your goals.
Why Should I Take a Science Course?
Science courses introduce students to the processes that shape the natural world, from cellular biology and human anatomy to chemical reactions, nutrition science, and environmental systems. Even if you don’t plan on majoring in a STEM-related field, science classes are incredibly valuable and often required as part of the general education curriculum.
Builds Critical Thinking Skills
Science teaches you how to analyze information, interpret data, test assumptions, solve problems, and think logically. These critical-thinking skills can transfer to business, marketing, criminal justice, psychology, education, and countless other programs.
Hands-On and Applied Learning
Many college science courses involve virtual labs, real-world case studies, or interactive simulations – especially in online formats. These experiences help deepen your understanding by showing how scientific concepts apply to living systems, technology, environmental challenges, or day-to-day life.
Connects to Other Majors and Career Paths
Scientific thinking supports a wide range of academic fields. Nutrition and biology tie into the health sciences. Chemistry supports majors in engineering, environmental science, and pre-medical tracks. Public health courses can help strengthen careers in community organizations and healthcare administration. You may not have a science-focused major, but these courses expand your knowledge and support interdisciplinary studies.
Types of Science Courses
Colleges typically offer several categories of science classes:
Biology and Life Sciences
Biology explores living organisms, how they function, and how they interact with their environments. These courses are popular across majors like health sciences, nursing, psychology, biology, and pre-med.
Some common biology-related courses include:
- Human Biology (with or without lab)
- Anatomy and Physiology I (with or without lab)
- Anatomy and Physiology II (with or without lab)
- Microbiology (with or without lab)
- Introduction to Nutrition
These courses help you understand the human body, disease processes, microbiological systems, and nutritional health, which is essential for students in medical or health-related fields.
Chemistry
Chemistry courses examine matter, chemical reactions, energy, and how substances interact. Chemistry knowledge is foundational for nursing, engineering, environmental science, biology, forensics, and general STEM fields.
Some common chemistry courses include:
- Introduction to Chemistry (with or without lab)
- Organic Chemistry
- Inorganic Chemistry
- Physical Chemistry
- Analytical Chemistry
These courses build a foundation in chemistry principles and prepare for more advanced majors that have a heavy chemistry component.
Health, Wellness, and Public Health
These science courses focus on human health, wellness, and disease prevention. They are especially valuable for students pursuing careers in healthcare, public service, community outreach, education, or fitness.
Some common health-focused courses include:
- Health, Fitness, and Wellness
- Introduction to Nutrition
- Public and Community Health
These courses explore topics like personal wellness, public health strategies and policies, health promotion, and community health systems.
Environmental and Earth Sciences
Environmental and earth science courses examine ecosystems, sustainability, climate patterns, and the natural processes shaping the planet.
Some common environmental courses include:
- Environmental Science
- Atmospheric Science
- Geology
- Oceanography
- Hydrology
These courses explore environmental challenges, the physical components of the earth, and human impact on natural systems. Students in environmental policy, conservation, sustainability, and even business may benefit from taking these classes.
Physics
Physics is foundational across many STEM programs. It’s a core scientific discipline that helps you understand the fundamental laws that govern energy, matter, motion, and the forces shaping the physical world. Many colleges require physics as part of their general education pathways, even for non-STEM degree programs.
Some common physics courses include:
- General or Introductory Physics
- Algebra-Based Physics
- Calculus-Based Physics
Lower-level physics courses support other sciences and prepare you for specialized physics courses like mechanics, electricity, magnetism, or physics for life sciences. Even fields that aren’t heavily science-focused, like healthcare, may require physics to understand topics like biomechanics, imaging technologies, or motion for physical therapy or exercise science.