Adding a new Subject

IT IS GOOD TO HAVE PHYSICS AND MATHS VIDEOS ON INDIAN CURRICULUM  ON KHAN ACADEMY. IT WOULD HAVE REALLY BEEN HELPFUL IF VIDEOS ON BIOLOGY AS WELL AS CHEMISTRY WOULD HAVE BEEN CLUBBED TOGETHER AS THE SAME AS MATHS AND PHYSICS. THROUGH KHAN ACADEMY HAS ALL THE REQUIRED VIDEOS ON BOTH OF THESE SUBJECTS BUT AS IT HASNT BEEN CLUBBED THEREFORE A LOT OF TIME IS WASTED ON SEARCHING THE DESIRED TOPICS. IT WOULD BE GOOD IF BOTH OF THESE CAN BE SUBJECTS WITH SPECIFIED TOPICS OF CLASS 11TH AND 12TH.

THANKS