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PickAClass · Foundations & Lifelong Academics

Natural Sciences

Explore the principles of the physical and biological world, including physics, chemistry, and biology, from introductory to advanced levels.

13 subcategories · 1293 courses total

Organic Chemistry

Study the structure, properties, composition, reactions, and synthesis of carbon-containing compounds. Essential for medicine, biology, and materials science.

Investigate the relationships between heat, work, temperature, and energy. Learn the laws of thermodynamics and their application in engines, chemical reactions, and physical systems.

Human Anatomy & Physiology

Study the intricate structure (anatomy) and function (physiology) of the human body. Explore the major organ systems and how they work together to maintain homeostasis.

Quantum Mechanics

Delve into the fundamental theory of physics that describes nature at the smallest scales. Explore wave-particle duality, the Schrödinger equation, and quantum phenomena.

General Chemistry

Learn the fundamental principles of chemistry, including atomic structure, chemical bonding, stoichiometry, and the states of matter. This is the foundation for all other chemistry disciplines.

Classical Mechanics

Master the principles of motion, forces, and energy for macroscopic objects. Apply Newton's laws, conservation principles, and Lagrangian mechanics to solve physical problems.

Explore the chemical processes within and related to living organisms. Understand the structure and function of macromolecules like proteins, lipids, and nucleic acids.

Explore the universe beyond Earth, including stars, planets, galaxies, and the cosmos. Learn about celestial mechanics, stellar evolution, and the tools used to observe the universe.

Study the physical constitution of the Earth and its atmosphere. Learn about geology, oceanography, meteorology, and the processes that shape our planet.

Electromagnetism

Study the interactions of electrically charged particles through electric and magnetic fields. Understand Maxwell's equations and their role in light, electricity, and magnetism.

Learn about heredity, genes, and the mechanisms of genetic variation. Understand Mendelian inheritance, molecular genetics, and the principles of gene expression.

Cell & Molecular Biology

Explore the fundamental unit of life, the cell. Study its structure, organelles, and the molecular processes that govern its function, including DNA replication and protein synthesis.

Ecology & Evolution

Investigate the interactions between organisms and their environment, and the processes that drive biodiversity. Study natural selection, adaptation, ecosystems, and population dynamics.