Courses
Science
10 free courses in Science. Mathematics, physics, chemistry and biology, solved rather than only explained.
Courses to get you started
All free, all made by people who teach in public.
Crash Course Geology
by CrashCourse
3h 38m · Beginner
April 2026
Free22 lessons
MIT 18.642 Topics in…
by MIT OpenCourseWare
26h 12m · Intermediate
October 2025
Free22 lessons
Biology
by CrashCourse
10h 48m · Beginner
May 2023
Free51 lessons
MIT 18.200 Principles of…
by MIT OpenCourseWare
24h 42m · Intermediate
November 2025
Free20 lessons
All Science courses
Nothing here costs anything. No card, no trial, no account needed to watch.
Crash Course Geology
In 25 episodes, we’re going to learn about geology—the study of Earth’s physical structure and processes. Our host, Sage, will teach you about the geological forces and cycles that shape our planet’s past, present, and future. This content is based on an introductory university-level curriculum. B
by CrashCourse
3h 38m22 lessonsBeginner1.4M views
Free
Essence of linear algebra
A free course offering the core concept of linear algebra with a visuals-first approach.
by 3Blue1Brown
3h 1m16 lessonsBeginner67M views
Free
Essence of calculus
A free course offering the core concept of Calculus, with a visuals-first approach aimed at making you feel like you could have discovered the subject yourself.
by 3Blue1Brown
3h 11m12 lessonsBeginner47M views
Free
Differential Equations
After learning calculus and linear algebra, it's time for differential equations! This is one of the most important topics in mathematics, especially for those who are interested in physics and engineering, as these equations show up anywhere that rates of change are described. Learn about different
by Professor Dave Explains
4h 8m27 lessonsBeginner1.2M views
Free
Inorganic/Organometallic Chemistry
So far we've learned a lot about general chemistry and organic chemistry, so let's move into inorganic chemistry and organometallic chemistry. In this series we will investigate all the elements on the periodic table that were ignored in organic chemistry, especially the transition metals. These ele
by Professor Dave Explains
5h 56m41 lessonsBeginner2.1M views
Free
Неорганическая химия
В этом плейлисте собраны уроки, в которых мы будем рассматривать самые важные неорганические вещества по такому плану: - нахождение в природе - физические свойства - методы получения - химические свойства
by Птичка Химичка -Химия с Нуля-
3h 16m12 lessonsBeginner712K views
Free
Geology Crash Course
Welcome to Crash Course Geology! Over the course of 25 episodes, Sage will introduce you to the incredible geological forces, cycles, and processes that shape our world. This series will explore how geology touches all of our lives — and connects us to a much bigger story. Course Description In 25
by Dixon, D
3h 8m19 lessonsBeginner1.2M views
Free
WBP/KP GS (BIOLOGY)🔥
✅elit app : https://play.google.com/store/apps/details?id=in.elitacademy 👉WBP/KP Selection Batch 2026 WhatsApp Group- এ Join করো: https://chat.whatsapp.com/EdFn9i8oqYhFTm9hYzxJi1 👉WBP এবং KP পরীক্ষার সেরা প্রস্তুতির জন্য এটাই তোমার সেরা সুযোগ। 🔥WBP / KP / Police Exam 2026 📌 West Bengal Police
by elit
3h 3m4 lessonsBeginner1.1K views
Free
Biology
The following topics are covered 1.4 Ethical issues in biology 1.4.1 Ethical treatment of plants and animals during biological studies Unit one summary
by Fidel Tutorial
5h 35m13 lessonsBeginner932 views
Free
Calculus IV: Vector Calculus (Line Integrals, Surface Integrals, Vector Fields, Greens' Thm, Divergence Thm, Stokes Thm, etc) **Full Course**
This playlist on vector calculus covers approximately six weeks of my Calculus IV course. It follows my full semester multivariable calculus course here: https://www.youtube.com/playlist?list=PLHXZ9OQGMqxc_CvEy7xBKRQr6I214QJcd The major topics are line integrals, surface integrals, vector fields,
by Dr. Trefor Bazett
5h 28m39 lessonsBeginner5.9M views
Free