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Xorazm viloyati shovot tumani maktabining 7 – “ ” sinf o`quvchisi
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| bet | 5/21 | | Sana | 25.01.2024 | | Hajmi | 2,47 Mb. | | #146064 |
Bog'liq 7-Sinf KIMYO NAZORAT ISHI daftar 20221-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._________________________________________________________________
_________________________________________________________________________________________________________________kimyoviy xossa deyiladi
Kompitentlikni aniqlash uchun materiallar:
8. Qandning suvda erishida qanday hodisa kuzatiladi ?_______________________
9. Nima uchun xonadonda ishlatiladigan shisha banka idishlarni olovga qo’yib
qizdirib bo’lmaydi?__________________________________________________
10. Alangani______qismga bolish mumkin. 1-alanganing yuqori qismi
_______________ 2-alanganing o’rta qismi ______________ 3-alangani pastki
qismi___________________________________________________bo ‘ladi.
11. Ifloslangan osh tuzini tozalash usullarini yozing.______________________ _____________________________________________________________________________________________________________________________________________________________________________________________________________________
12. Uy ro’zgorda ishlatiladigan asal, sut, o’simlik moyi qanday moddalarga misol bo’ladi?____________________________________________________________
______________________________________________________________________________________________________________________________________
Sana Ball Imzo
2-Nazorat ishi:
Mavzu:
Atom. Atom tuzilishi haqidagi bilimlarning rivojlanish tarixi
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Atom va uning tuzilishi, proton, neytron va elektronlar
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Kimyoviy element. Kimyoviy belgi
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Kimyoviy elementning nisbiy atom massasi
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Izotoplar. Izobarlar. Izotonlar
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Kimyoviy formula. Valentlik
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