Course Catalog
Real courses across every subject and level — from Kindergarten through PhD.
Level
Subject
24 courses
Exploring Our World: Weather & Nature
Young scientists observe the sky, seasons, plants, and animals — and learn to ask 'why?'.
Space for Kids
Blast off through the solar system — the Sun, Moon, planets, and stars, explained for young explorers.
Simple Machines
Levers, ramps, pulleys, and wheels — the six simple machines that make hard jobs easy, with build-it-yourself labs.
Earth & Life Science
Middle-school science: cells, ecosystems, rocks, and the water cycle.
Physical Science: Forces & Energy
Push, pull, launch, and glide — how forces move things, how energy changes form, and why 45° throws farthest.
Biology
The science of life: cells, DNA, evolution, and how organisms work.
Oceanography: The Blue Planet
Dive into the ocean that covers most of Earth: waves, tides, currents, and the strange life of the deep.
Chemistry
Atoms, bonding, reactions, and the periodic table — matter and how it changes.
Astronomy
Explore the solar system and beyond: planets, the Sun, and the life cycle of stars.
Physics
Motion, forces, energy, and waves — the rules the universe runs on.
Genetics & Heredity
Genes, alleles, and Punnett squares — how traits pass from parents to the next generation.
Human Anatomy & Physiology
How the body works: the skeletal, muscular, circulatory, and nervous systems, and how they cooperate to keep you alive.
Electricity & Circuits
Voltage, current, and resistance — build the mental model behind every circuit, from a flashlight to a laptop.
Environmental Science
How ecosystems work and how humans affect them — energy flow, pollution, and climate change.
Organic Chemistry
The chemistry of carbon: nomenclature, functional groups, and reaction mechanisms.
Thermodynamics
Heat, work, and entropy — the laws governing energy, engines, and why time has a direction.
Materials Science
Why steel bends, ceramics shatter, and silicon computes — structure, properties, and design of materials.
Geology: The Dynamic Earth
Plate tectonics, the rock cycle, earthquakes, and deep time — how the planet builds and reshapes itself.
Immunology
How the body defends itself — innate and adaptive immunity, antibodies, vaccines, and memory.
Neuroscience
Graduate tour of the brain: how neurons fire, how synapses learn, and how circuits of cells become behavior.
Molecular Biology
Graduate study of the molecules of life: DNA replication, transcription, and how genes become proteins.
Microbiology
The unseen majority: graduate study of bacteria, viruses, and microbes — how they grow, cause disease, and keep ecosystems (and us) alive.
Quantum Mechanics
Doctoral physics: wavefunctions, superposition, and the Schrödinger equation.
Astrophysics & Cosmology
Doctoral study of the universe at large: stellar physics, redshift and expansion, and the evidence for the Big Bang.