Combined Science Topic 19 - Chemical Formulae and Equation and Physics Topic 1 - Physical Quantities, Units and Measurements

Hello!
These are the notes for this topic. So feel free to download them through this link:

[Combined Science] Topic 19 - Chemical Formulae and Equation
[Combined Science] Calculation of Mass Exercise
[Combined Science] Periodic Table

Thanks to Cg. Lim Ming Han, I now have the notes for Physics. I've edited his notes abit (just changed the font), but thats about it. You 9Sci2-ers can download it through:
[Physics] Topic 1

Extra info on vector addition :

• Physicsclassroom.com 
• Everything science