Science & research

Crash Course Chemistry

Free

47 video lectures (8h 13m)
Certificate of completion
Ask the teacher your doubts
Watch on the web and in the Android app
Learn more

About this course

Chemistry made clear and fun with Hank Green and Crash Course, from the nucleus and the periodic table to reactions, energy and the chemistry of life and the planet. Who it's for: Class 11 and 12 and first-year college students, and anyone curious about chemistry. These are the free, official videos of the Crash Course Chemistry playlist from the CrashCourse YouTube channel (youtube.com/@crashcourse). All videos belong to Crash Course; Sikhami is not affiliated with Crash Course and simply arranges the public playlist into a course, so you can learn one lesson at a time and keep track of your progress.

What you will learn

• The nucleus, atoms and the periodic table • Unit conversions and significant figures • Chemical bonding and molecular shapes • Stoichiometry and chemical reactions • Gases, solutions, equilibrium, and acids and bases • Thermodynamics, kinetics and electrochemistry • Organic chemistry, polymers and the global carbon cycle

This course at a glance

Lectures: 47 video lectures
Video: 8h 13m in all
Level: Class 11, Class 12, Undergraduate
Language: English
Access: Lifetime access
Certificate: On completion

Lectures last updated September 2026

Course content

1 section · 47 lectures · 8h 13m

1. Chemistry
- Crash Course Chemistry Preview!1m
- The Nucleus: Crash Course Chemistry #110m
- Unit Conversion & Significant Figures: Crash Course Chemistry #211m
- The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #310m
- The Periodic Table: Crash Course Chemistry #411m
- The Electron: Crash Course Chemistry #512m
- Stoichiometry - Chemistry for Massive Creatures: Crash Course Chemistry #612m
- Water & Solutions - for Dirty Laundry: Crash Course Chemistry #713m
- Acid-Base Reactions in Solution: Crash Course Chemistry #811m
- Precipitation Reactions: Crash Course Chemistry #911m
Show all 47 lectures
- Redox Reactions: Crash Course Chemistry #1011m
- How to Speak Chemistrian: Crash Course Chemistry #1110m
- The Ideal Gas Law: Crash Course Chemistry #129m
- Ideal Gas Problems: Crash Course Chemistry #1311m
- Real Gases: Crash Course Chemistry #1411m
- Partial Pressures & Vapor Pressure: Crash Course Chemistry #1511m
- Passing Gases: Effusion, Diffusion, and the Velocity of a Gas - Crash Course Chemistry #1611m
- Energy & Chemistry: Crash Course Chemistry #179m
- Enthalpy: Crash Course Chemistry #1811m
- Calorimetry: Crash Course Chemistry #1911m
- Entropy: Embrace the Chaos! Crash Course Chemistry #2013m
- Lab Techniques & Safety: Crash Course Chemistry #219m
- Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #229m
- Polar & Non-Polar Molecules: Crash Course Chemistry #2310m
- Bonding Models and Lewis Structures: Crash Course Chemistry #2411m
- Orbitals: Crash Course Chemistry #2510m
- Liquids: Crash Course Chemistry #2611m
- Solutions: Crash Course Chemistry #278m
- Equilibrium: Crash Course Chemistry #2810m
- Equilibrium Equations: Crash Course Chemistry #299m
- pH and pOH: Crash Course Chemistry #3011m
- Buffers, the Acid Rain Slayer: Crash Course Chemistry #3111m
- Kinetics: Chemistry's Demolition Derby - Crash Course Chemistry #329m
- Doing Solids: Crash Course Chemistry #339m
- Network Solids and Carbon: Crash Course Chemistry #348m
- Silicon - The Internet's Favorite Element: Crash Course Chemistry #359m
- Electrochemistry: Crash Course Chemistry #369m
- The History of Atomic Chemistry: Crash Course Chemistry #379m
- Nuclear Chemistry: Crash Course Chemistry #389m
- Nuclear Chemistry Part 2 - Fusion and Fission: Crash Course Chemistry #3911m
- Hydrocarbon Power!: Crash Course Chemistry #4011m
- Alkenes & Alkynes: Crash Course Chemistry #419m
- Aromatics & Cyclic Compounds: Crash Course Chemistry #429m
- Hydrocarbon Derivatives: Crash Course Chemistry #438m
- Nomenclature: Crash Course Chemistry #449m
- Polymers: Crash Course Chemistry #4510m
- The Global Carbon Cycle: Crash Course Chemistry #4610m

How long it takes

8h 13m of video in 47 lectures. Pick a pace that suits you:

Steady
about 2 weeks
at 30 minutes a day
Regular
9 days
at 1 hour a day
Fast track
5 days
at 2 hours a day

Video time only: practice takes a little longer. Your place in every lecture is saved, so you can stop any time.

Earn a certificateLearn more

Watch every lecture, then claim a certificate of completion with your name on it.

Its own web page and code, so a school or an employer can check it is real
Save it as a PDF or print it
Included with the course, at no extra cost

Who teaches it

Sikhami InstituteNew Delhi · 297 courses · 694 learners · 473 followersSikhami Institute is Sikhami's own institute for free learning. We pick some of the best free courses on YouTube, from Harvard's CS50, MIT, NPTEL, Khan Academy, Google, Microsoft, the BBC, Crash Course, PW, Magnet Brains, CodeWithHarry and many more, and turn them into proper courses on Sikhami that you can follow lesson by lesson while your progress is saved. Free courses in every category, in English and Hindi: school and competitive exams, programming and AI, languages, music and dance, art, yoga and fitness, cooking, trades, business, marketing, farming and more. All videos belong to their creators and play from their official YouTube channels, and each course credits its creator. Questions or suggestions? Write to help@sikhami.com.

Questions people ask

Is this course free?

Yes. Joining is free, and the lectures unlock as soon as you join. Once you join, it is yours for life.

How long is the course?

47 video lectures, 8h 13m of video in all. At an hour a day, the videos take 9 days. You learn at your own pace; there are no fixed class times.

Do I get a certificate?

Yes. When you have watched every lecture, you can claim a certificate of completion. It has its own page and code, so anyone can check that it is real. About certificates

What language is it taught in?

English.

Can I learn on my phone?

Yes. Watch on the website or in the Sikhami app for Android with the same account. Your place in every lecture is saved, so you can switch between them.

Can I ask the teacher a doubt?

Yes. Ask it in the questions on the course page, or from inside any lecture while you watch. You can also keep your own notes on each lecture.

Who made these videos?

The lectures are the free, public videos of the YouTube playlist "Chemistry", and they belong to their creator. Sikhami arranges them into a course, so you can learn one lecture at a time and keep track of your progress.

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