Courses
Science
28 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
Biology
by CrashCourse
10h 48m · Beginner
May 2023
Free51 lessons
Ultrasound physics
by Radiology Tutorials
6h 9m · Beginner
March 2023
Free26 lessons
Ultrasound physics course
by Radiology Tutorials
6h 9m · Beginner
October 2024
Free26 lessons
All Science courses
Nothing here costs anything. No card, no trial, no account needed to watch.
MIT 18.642 Topics in Mathematics with Applications in Finance, Fall 2024
Instructors: Dr. Peter Kempthorne, Dr. Vasily Strela, Dr. Jake Xia View the complete course: https://ocw.mit.edu/courses/18-642-topics-in-mathematics-with-applications-in-finance-fall-2024 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP601Q2jo-J_3raNCMMs6Jves View previous versi
by MIT OpenCourseWare
26h 12m22 lessonsIntermediate1.5M views
Free
MIT 18.200 Principles of Discrete Applied Mathematics, Spring 2024
Instructors: Prof. Ankur Moitra, Prof. Peter Shor, Susan Ruff View the complete course: https://ocw.mit.edu/courses/18-200-principles-of-discrete-applied-mathematics-spring-2024 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61p2fXeXjNCrfNHFwyW-bl0 This course will teach you ill
by MIT OpenCourseWare
24h 42m20 lessonsIntermediate165K views
Free
MCAT Biology
UTD. Twice a week. Gap year M4. All gas, no brakes.
by Yusuf A. Hasan
20h 32m20 lessonsIntermediate836K views
Free
MIT 6.1200J Mathematics for Computer Science, Spring 2024
Instructor: Zachary Abel, Brynmor Chapman, Erik Demaine View the complete course: https://ocw.mit.edu/courses/6-1200j-mathematics-for-computer-science-spring-2024/ YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61VNvICqk2HXJTonnKgAc9d Elementary discrete mathematics for science
by MIT OpenCourseWare
31h 40m24 lessonsIntermediate645K views
Free
Fundamentals of Physics with Ramamurti Shankar
This course provides a thorough introduction to the principles and methods of physics for students who have good preparation in physics and mathematics. Emphasis is placed on problem solving and quantitative reasoning. This course covers Newtonian mechanics, special relativity, gravitation, thermody
by YaleCourses
28h 45m24 lessonsBeginner9.2M views
Free
Fundamentals of Physics II with Ramamurti Shankar
This is a continuation of the introductory course on the principles and methods of physics for students who have good preparation in physics and mathematics. This course covers electricity, magnetism, optics and quantum mechanics. For more information about Professor Shankar's book based on the lec
by YaleCourses
29h 49m25 lessonsBeginner7.8M views
Free
MIT 7.016 Introductory Biology, Fall 2018
Instructors: Barbara Imperiali, Adam Martin, Diviya Ray View the complete course: https://ocw.mit.edu/7-016F18 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP63LmSVIVzy584-ZbjbJ-Y63 7.016 Introductory Biology provides an introduction to fundamental principles of biochemistry, mo
by MIT OpenCourseWare
27h 52m35 lessonsBeginner3.6M views
Free
8.01 MIT Physics I - Classical Mechanics Dubbed in Turkish
Fizik I: Klasik Mekanik-Fiziğe Giriş -, Öğretmen Prof Walter Lewin Çevirmenler: Seydi Doğan Seslendiren M Haluk AR
by Lectures by Walter Lewin. They will make you ♥ Physics.
28h 51m37 lessonsIntermediate2M views
Free
Calculus 1 (Full Length Videos)
Topics: Review of Algebra/Trigonometric Concepts, Finding Limits, Derivatives and Derivative Techniques, Integrals and Integral Techniques, and Applications.
by Professor Leonard
44h 57m32 lessonsIntermediate25M views
Free
Phys 326 Quantum Mechanics II
Course web page: Cemal Yalabık (Spring 2024) Department of Physics Bilkent University
by Bilkent Üniversitesi
25h 13m31 lessonsIntermediate21K views
Free
Calculus 2 (Full Length Videos)
Calculus of Logarithmic and Exponential Function, Techniques for Solving Integrals, Series, and Calculus with Polar Coordinates.
by Professor Leonard
50h 3m27 lessonsIntermediate17M views
Free
Химия. Полный курс.
Этот плейлист содержит полный курс школьной химии! Все уроки пронумерованы, поэтому тебе будет легко ориентироваться в материале.
by Птичка Химичка -Химия с Нуля-
21h 24m92 lessonsAdvanced8.1M views
Free
Period Integrals of Algebraic Varieties and GKZ A-Hypergeometric Functions. S. Tanabe. Fall 2025
06.10.25
by Mathematics at HSE
17h 12m10 lessonsIntermediate1.4K views
Free
Calculus 3 (Full Length Videos)
Calculus of Vectors, Vector Functions, Surfaces, and Vector Fields. Topics include an Introduction and study of vectors in 2-D and 3-D, a study of 3-D functions and surfaces, vector functions and calculus of vector functions, partial derivatives and multiple integrals using several coordinate syste
by Professor Leonard
75h 24m34 lessonsBeginner20M views
Free
JAMB/WAEC 2027 Mathematics Online Tutorials (All Topics)/Syllabus
📚 JAMB/WAEC Mathematics Online Tutorials (All Topics/Syllabus) Welcome to O3Schools Mathematics Tutorials, your complete guide to mastering JAMB, WAEC, NECO, GCE, and Post-UTME Mathematics. This tutorial series covers the complete Mathematics syllabus and all major examination areas. The syllabus
by O3SCHOOLS
29h 32m81 lessonsAdvanced1.8M views
Free
IMAT 101 | Biology
All videos correspond to the IMAT Specifications
by Med School EU
19h 22m57 lessonsBeginner643K views
FreeThe author has removed some lessons
Prealgebra (Full Length Videos)
Topics: Introduction to the number line, Operations involving integers, Solving basic equations, Introduction to fractions, Introduction to rates and ratios, Operations with polynomials.
by Professor Leonard
38h 55m44 lessonsBeginner1.9M views
Free
Intermediate Algebra (Full Length Videos)
Algebra skills including: Factoring Basic Polynomials, Solving basic equations, Rational expressions and rational equations, Graphing, Inequalities and Absolute Value Equations, Radicals and radical equations, Working with Quadratic equations, Exponential and Logarithmic equations, and Conic Secti
by Professor Leonard
54h 33m46 lessonsIntermediate2.7M views
Free
General Physics I - PHYS 101
Standards and units; vectors and coordinate systems; kinematics; dynamics; work, energy and power; conservation of energy; dynamics of system of particles; collisions; rotational kinematics and dynamics; oscillations.
by Bilkent Üniversitesi
27h 13m39 lessonsBeginner799K views
Free
Phys 325 Quantum Mechanics I
Course web page: Cemal Yalabık (Fall 2023) Department of Physics Bilkent University
by Bilkent Üniversitesi
31h 32m38 lessonsIntermediate34K views
Free
Freshman Organic Chemistry with J. Michael McBride
This is the first semester in a two-semester introductory course focused on current theories of structure and mechanism in organic chemistry, their historical development, and their basis in experimental observation. The course is open to freshmen with excellent preparation in chemistry and physics,
by YaleCourses
30h 5m37 lessonsBeginner975K views
Free
Calculus 1 Playlist 1
Topics: Review of Algebra/Trigonometric Concepts, Finding Limits, Derivatives and Derivative Techniques, Integrals and Integral Techniques, and Applications.
by Professor Leonard
38h 57m177 lessonsAdvanced1.4M views
Free
Calculus - Limits Test Review
This calculus 1 playlist provides access to some free practice test questions on limits.
by The Organic Chemistry Tutor
18h 22m31 lessonsIntermediate582K views
Free
Physics With Calculus
This playlist contains videos with physics and calculus.
by The Organic Chemistry Tutor
17h 16m24 lessonsIntermediate12M views
Free
TURBO BIOLOGY COURSE
LIKE OUR PAGE : https://www.facebook.com/roadtodmc.officia এইচএসসি 24 ব্যাচের জন্য বাংলাদেশের সর্বপ্রথম, 💥 One Stop Biology Course for HSC'23 & 24 💥 😮এক বছরের মধ্যেই বায়োলজি সিলেবাস সম্পূর্ণ শেষ। 50% DISCOUNT . ONLY @ 3000/- DETAILS : https://www.facebook.com/roadtodmc2.0.official/posts/pfbid02
by ROAD to DMC (RTD)
133h 48m75 lessonsAdvanced1.8M views
Free
Уроки по учебнику Campbell Biology
Поток энергии в экосистемах; Первичное производство в экосистемах; Переход энергии между трофическими уровнями; Биогеохимические циклы; Восстановление разрушенных экосистем. Презентация урока: https://drive.google.com/drive/folders/1uf_Aiv_GMtKn0aH9-elsSB6OM-KgsTE8?usp=sharing #экология #экосистемы
by EdLight Biology
97h 46m87 lessonsAdvanced422K views
Free
8.01x - MIT Physics I: Classical Mechanics
Links to lecture notes, assignments/solutions and exams/solutions are available via links in the descriptions of the individual lecture videos.
by Lectures by Walter Lewin. They will make you ♥ Physics.
30h 30m40 lessonsAdvanced85M views
Free
Characteristic Classes and Enumerative Geometry. KAZARYAN M. Spring 2026
20.01.2026
by Mathematics at HSE
39h 32m29 lessonsIntermediate2.9K views
FreeThe author has removed some lessons