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✅UzBMBA (iyul imtihonlari, milliy sertifikat), attestatsiya, A(S)-Level, akademik litseylarga kirish imtihonlari - barchasiga tayyorgarlik shu kanalimizda YouTube:https://youtube.com/channel/UCZPv7MxoMoINT4aunY5N9Dg
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Channel Posts
Nega aynan 7-sinffan boshlab kimyo fani o'rgatiladi?
Kimyo fanining maktab darsliklarida aynan 7-sinfdan (taxmiman 12–13 yoshdan) boshlab o'rgatilishining orqasida psixologik, pedagogik va ilmiy asoslar yotadi. Bu shunchaki tanlangan tasodifiy muddat emas.
Buning 4 ta asosiy sababi bor:
1. Abstrakt (mavhum) fikrlashning shakllanishi
Shveytsariyalik mashhur psixolog Jan Piaje nazariyasiga ko'ra, bolalarda 11–12 yoshdan boshlab "rasmiy amallar bosqichi", ya'ni mavhum fikrlash qobiliyati rivojlanadi. 7-sinfgacha bo'lgan bola faqat o'zi ko'rib, ushlab turgan narsalarni yaxshi tushunadi. 7-sinfdan boshlab esa u ko'zga ko'rinmaydigan atomlar, molekulalar, kimyoviy bog'lanishlar va ionlar kabi ko'rinmas tushunchalar haqida mantiqiy fikrlay olish darajasiga yetadi.
2. Fanlararo poydevorning tayyorligi (Matematika va Fizika)
Kimyoni matematika va fizikasiz o'rganib bo'lmaydi. 7-sinfga kelib o'quvchi kimyoviy hisob-kitoblarni qilish uchun yetarli bazaga ega bo'ladi:Matematikadan: Proportsiya tuzish, foizlar, oddiy tenglamalar yechish va manfiy/musbat sonlar bilan ishlashni o'rganib bo'ladi (bu darslikdagi masalalar va valentlikni topish uchun shart).
Fizikadan: Aynan 7-sinfdan fizika fani ham boshlanadi. O'quvchi moddaning agregat holatlari (gaz, suyuqlik, qattiq), zichlik, massa va diffuziya kabi tushunchalar bilan parallel ravishda tanishadi.
3. "Tabiatshunoslik" (Science) fanining mantiqiy davomi 1-sinfdan 6-sinfgacha o'quvchilar "Atrofimizdagi olam", "Tabiatshunoslik" yoki "Tabiiy fanlar (Science)" darslarida dunyoni umumiy ravishda o'rganishadi. 7-sinfga kelganda esa bu umumiy bilimlar aniq sohalarga ajratiladi: biologiya (tirik organizmlar), fizika (harakat va energiya) va kimyo (moddalarning tarkibi va o'zgarishi). 7-sinf — umumiy dunyoqarashdan tor ixtisoslashgan fanga o'tish uchun eng optimal davr hisoblanadi.
4. Laboratoriya xavfsizligi va mas'uliyatKimyo nafaqat nazariya, balki kislotalar, ishqorlar va olov bilan ishlanadigan tajribalar fanidir. 12–13 yoshli o'quvchi laboratoriyada o'zini qanday tutish kerakligini, o'ta xavfli moddalar bilan ishlashdagi mas'uliyatni va xavfsizlik qoidalariga rioya qilish muhimligini anglay oladigan yoshda bo'ladi. Undan kichik yoshdagi bolalarda ehtiyotkorlik hissi pastroq bo'lgani uchun kimyoviy reaktivlar bilan ishlash xavfli hisoblanadi.
@profchem_uz
| 2 | Milliy sertifikat (yangi)! | 661 |
| 3 | Kimyo. Milliy sertifikat. Yozma ish. 42-savol.
Navbatdagi sertifikat imtihonlarida tushish ehtimoli mavjud reaksiyalar va ularning mahsulotlari
Bizning manzil
👇👇👇👇👇
@profchem_uz | 411 |
| 4 | Kimyo. Milliy sertifikat. Yozma ish. 42-savol.
Navbatdagi sertifikat imtihonlarida tushish ehtimoli mavjud reaksiyalar va ularning mahsulotlari
Bizning manzil
👇👇👇👇👇
@profchem_uz | 387 |
| 5 | Kimyo. Milliy sertifikat. Yozma ish. 42-savol.
Navbatdagi sertifikat imtihonlarida tushish ehtimoli mavjud reaksiyalar va ularning mahsulotlari
Bizning manzil
👇👇👇👇👇
@profchem_uz | 356 |
| 6 | No text... | 1 |
| 7 | No text... | 207 |
| 8 | 42-savol-poster.html
https://claude.ai/public/artifacts/1c8611ba-e516-4edc-8ee1-3cd213e25676 | 1 |
| 9 | Kimyo. Milliy sertifikat. Yzoma ish. 42-savol.
Navbatdagi sertifikat imtihonlarida tushish ehtimoli mavjud reaksiyalar va ularning mahsulotlari
Bizning manzil
👇👇👇👇👇
@profchem_uz | 363 |
| 10 | Milliy sertifikat
Organik kimyo | 235 |
| 11 | https://www.instagram.com/reel/DcwCAJftMI4/?igsi=MWd4cTllMnBhNnJicQ== | 231 |
| 12 | Yuqoridagi video mana shu yangi 10-sinf organik kimyo kitobidan olingan maqsadli video
Darslikni o'rganishingizni osonlashtirmoqchimiz Xudo xohlasa | 395 |
| 13 | Organik kimyodan laboratoriya tajribasi
👇👇👇👇👇
https://www.instagram.com/reel/DcWbR7stNpf/?igsi=MWVwcjlyZmdvOTV5eg== | 358 |
| 14 | https://www.instagram.com/reel/DcVPVPiNEOu/?igsi=cWZzMXVxdnl3ajlt | 366 |
| 15 | https://www.instagram.com/reel/Db92xSioZgW/?igsh=dG5qY29zZTVlYXo3 | 438 |
| 16 | No text... | 448 |
| 17 | Savol-2020
@JasperCorporation
Kimyo va oziq-ovqat sanoati!!!
Jasper-Corporation ishlab chiqarish majmuasida quyuqlashtirilgan olma sharbatidan 1 tonna ishlab chiqarish uchun 5 tonna toza olma mevasi sarflanadi. Olma mevasida massa bo'yicha 0,3% miqdorida C vitamini mavjud bo'lsa hamda uning 20% qismi sharbatga o'tsa, har bir idishdagi 1 kg olma sharbatida necha gramm C vitamini mavjud?
A) 2 B) 2,5 C) 3 D) 4 @profchem_uz | 414 |
| 18 | Qaysi zarrachalar o'zaro izobar bo'la olmaydi? | 430 |
| 19 | Qaysi zarrachalarda kimyoviy xossalar bir xil bo'ladi? | 398 |
| 20 | 280 g 40% li CuSO⁴ eritmasiga 20 g Mg plastinka tushirildi. Plastinka chiqarib olingach, eritmadagi sulfat tuzlari massa ulushlari tenglashdi. Chiqarib olingan plastinka massasini (g) aniqlang. | 422 |
