Sir you have explained us very well. We had understood more about crystallization of water. This is very useful to all 10th class students. Really it was a good explanation sir 🎉😊
Our classroom , ❤❤my forever friends , our favorite class 🖤💜 we have lots fun in our class room and 🖤😇We love BPS school forever 💜💗8th class "A" section forever and ever our favorite teacher👨🏫💗