_________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ ______________________________________________________________________________ Sana Ball Imzo 1-Nazorat ishi Mavzu : Dastlabki kimyoviy tushunchalar
Nazorat shakli: Kimyoviy diktant.
1.Kimyo fani________________________________________________________
___________________________________________________to’g’risidagi fandir.
2.Jahonda tanilgan buyuk ajdodlarimiz___________________________________
_________________________________________________________________lar
VIII-X asrdalardayoq o’zlarining ilmiy asarlarida kimyoviy moddalardan turmush
ehtiyojlaridan va turli xil kasalliklarni davolashda foydalanish yo’llari haqida
dastlabki ma’lumotlarni keltirganlar.
3.kiyimingizga tekkan siyohni qanday yo’qotish mumkin?____________________ __
________________________________________________________________
__________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
_______
4. Tajriba davomida termometr sinib ketsa , tokilgan simobni__________________
_______________________________________________ orqali yig’ib olish kerak.
5. Natriy metalini __________________________solingan idishda saqlash kerak.
6. Kislotani suyultirishda_________________________________________shart.
7._________________________________________________________________
