Sirius Revision
My name is Mitch Campbell, and I'm a Canadian, currently living in Indonesia with my wife and two daughters. I love making resources to support students!
Scroll down for playlists on the following subjects:
-Physics SL and HL made by me
-Biology SL and HL made by Cheryl Hickman
-Chemistry SL and HL made by David Paddock
-Maths Applications (AI) SL made by me
-Maths Analysis (AA) SL made by me
Cheers, Mitch (June 2025)

Join our Mid-IB and Pre-IB courses online in July!
![Structure 3.2.5 Naming Guidelines 1 [IB Chemistry SL/HL]](https://ricktube.ru/thumbnail/0dCtrl7TtOs/mqdefault.jpg)
Structure 3.2.5 Naming Guidelines 1 [IB Chemistry SL/HL]
![Paper 1B - Absolute, fractional, percentage uncertainty [IB Physics SL/HL]](https://ricktube.ru/thumbnail/z9acDpIJTK4/mqdefault.jpg)
Paper 1B - Absolute, fractional, percentage uncertainty [IB Physics SL/HL]
![Paper 1B - Linearisation [IB Physics SL/HL]](https://ricktube.ru/thumbnail/x22Gvzg-uc4/mqdefault.jpg)
Paper 1B - Linearisation [IB Physics SL/HL]
![Paper 1B - Random and systematic error [IB Physics SL/HL]](https://ricktube.ru/thumbnail/adCpVRjs2o4/mqdefault.jpg)
Paper 1B - Random and systematic error [IB Physics SL/HL]
![Paper 1B - Calculating uncertainties [IB Physics SL/HL]](https://ricktube.ru/thumbnail/VVG6bjFCg5M/mqdefault.jpg)
Paper 1B - Calculating uncertainties [IB Physics SL/HL]
![Paper 1B - Significant figures [IB Physics SL/HL]](https://ricktube.ru/thumbnail/5dbuOBVDD74/mqdefault.jpg)
Paper 1B - Significant figures [IB Physics SL/HL]

Good luck with your May 2025 exams!
![E3.1 Alpha, beta, gamma decay [IB Physics SL/HL]](https://ricktube.ru/thumbnail/xK1Yl-E_EDM/mqdefault.jpg)
E3.1 Alpha, beta, gamma decay [IB Physics SL/HL]
![E1.3 Emission and absorption spectra [IB Physics SL/HL]](https://ricktube.ru/thumbnail/vcz74DWkLBA/mqdefault.jpg)
E1.3 Emission and absorption spectra [IB Physics SL/HL]
![E1.5 HL Bohr model for hydrogen [IB Physics HL]](https://ricktube.ru/thumbnail/vQ6uoJjsAsk/mqdefault.jpg)
E1.5 HL Bohr model for hydrogen [IB Physics HL]
![E5.4 Distance to stars [IB Physics SL/HL]](https://ricktube.ru/thumbnail/vKa1u_gc5Zk/mqdefault.jpg)
E5.4 Distance to stars [IB Physics SL/HL]
![E2.5 HL Compton scattering [IB Physics HL]](https://ricktube.ru/thumbnail/sufeYE9u0yk/mqdefault.jpg)
E2.5 HL Compton scattering [IB Physics HL]
![E3.2 Exponential decay [IB Physics SL/HL]](https://ricktube.ru/thumbnail/sChBQmB1WOU/mqdefault.jpg)
E3.2 Exponential decay [IB Physics SL/HL]
![E4.2 Nuclear power plants [IB Physics SL/HL]](https://ricktube.ru/thumbnail/rouQua_BXDY/mqdefault.jpg)
E4.2 Nuclear power plants [IB Physics SL/HL]
![E2.2 HL Photoelectric effect 2 [IB Physics HL]](https://ricktube.ru/thumbnail/pTyqtKzIzTE/mqdefault.jpg)
E2.2 HL Photoelectric effect 2 [IB Physics HL]
![E2.4 HL Wave particle duality [IB Physics HL]](https://ricktube.ru/thumbnail/lzomX4qvpjo/mqdefault.jpg)
E2.4 HL Wave particle duality [IB Physics HL]
![E5.3 Evolution of stars [IB Physics SL/HL]](https://ricktube.ru/thumbnail/jt7NXN4jGvo/mqdefault.jpg)
E5.3 Evolution of stars [IB Physics SL/HL]
![E5.5 Stellar radius [IB Physics SL/HL]](https://ricktube.ru/thumbnail/j7Bb3VwOEXE/mqdefault.jpg)
E5.5 Stellar radius [IB Physics SL/HL]
![E3.5 HL Nuclear stability and strong nuclear force [IB Physics HL]](https://ricktube.ru/thumbnail/geImv97aCYs/mqdefault.jpg)
E3.5 HL Nuclear stability and strong nuclear force [IB Physics HL]
![E2.3 HL Evidence of wave or particle behaviour [IB Physics HL]](https://ricktube.ru/thumbnail/dQIMJ0QxWZM/mqdefault.jpg)
E2.3 HL Evidence of wave or particle behaviour [IB Physics HL]
![E3.4 Binding energy per nucleon [IB Physics SL/HL]](https://ricktube.ru/thumbnail/c-ZyyDNb2Mg/mqdefault.jpg)
E3.4 Binding energy per nucleon [IB Physics SL/HL]
![E2.1 HL Photoelectric effect 1 [IB Physics HL]](https://ricktube.ru/thumbnail/XfOHSCHh2F4/mqdefault.jpg)
E2.1 HL Photoelectric effect 1 [IB Physics HL]
![E3.3 Binding energy E=mc^2 [IB Physics SL/HL]](https://ricktube.ru/thumbnail/U0-OpOZxqSQ/mqdefault.jpg)
E3.3 Binding energy E=mc^2 [IB Physics SL/HL]
![E5.1 Fusion and stability of stars [IB Physics SL/HL]](https://ricktube.ru/thumbnail/TCFugxPd0oQ/mqdefault.jpg)
E5.1 Fusion and stability of stars [IB Physics SL/HL]
![E1.4 HL Nuclear radius and closest approach [IB Physics HL]](https://ricktube.ru/thumbnail/O4Zt4ZWLaAg/mqdefault.jpg)
E1.4 HL Nuclear radius and closest approach [IB Physics HL]
![E1.1 Nuclear physics and energy levels [IB Physics SL/HL]](https://ricktube.ru/thumbnail/HSh4Rgs8ljo/mqdefault.jpg)
E1.1 Nuclear physics and energy levels [IB Physics SL/HL]
![E5.2 HR diagrams [IB Physics SL/HL]](https://ricktube.ru/thumbnail/AQ558L5po6o/mqdefault.jpg)
E5.2 HR diagrams [IB Physics SL/HL]
![E3.6 HL Decay constant and more detailed equations [IB Physics HL]](https://ricktube.ru/thumbnail/7CKI8mA60Tg/mqdefault.jpg)
E3.6 HL Decay constant and more detailed equations [IB Physics HL]
![E1.2 Geiger Marsden Rutherford experiment [IB Physics SL/HL]](https://ricktube.ru/thumbnail/5LoNKJwlF4U/mqdefault.jpg)
E1.2 Geiger Marsden Rutherford experiment [IB Physics SL/HL]