Nazorat ishi, laboratoriya va amaliy mashg

O‘quvchining bahosi:
Sana:
2-amaliy mashg'uloti
O'simliklar bargidan gerbariy tayyorlash.
Kerakli jihozlar:10 xil o'simlik barglari, oq qog'oz, skotch, gazeta, faner bo'laklari.
Ishni bajarish tartibi:
1.Maktab yoki uyingiz atrofidagi 10 xil o'simlik bargidan namuna oling.
2.Quruq latta bilan changini arting.
3.Gazeta yoki qog'oz orasiga bargni tekis qilib joylashtiring.
4.Har bir bargni gazeta orasiga olib, tayyorlangan namunalarni bir-birining ustiga taxlang.
5.Namunalar tekis qurishi uchun ularni ikkita faner orasiga joylashtiring.
6.Namunalar mog'orlab qolmasligi uchun ustidagi gazetalarni har kuni almashtiring.
7.Barglari qurib qotgach, oq qog'ozga skotch yordamida yopishtiring.
8.Ota-onangiz yoki o'qituvchingiz yordamida quritilgan barg qaysi o'simlikka tegishli ekanligi va namuna olingan sanasini barg tagiga yozib qo'ying.

Xulosa
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