3rd Grade | भौतिक एवं रासायनिक परिवर्तन | REET | Easy Science | Sajid Sir

Описание: Easy Science Book Solution Class 1
भौतिक एवं रासायनिक परिवर्तन का कोई भी प्रश्न अब कभी गलत नही होगा
NCERT, RBSE & PYQ के सभी महत्वपूर्ण Points एक ही Video में Complete
पशु परिचर , REET , 3rd Grade , CET एवं अन्य सभी प्रतियोगी परीक्षाओं हेतु उपयोगी
Easy Science
Sajid Sir

In this video, Sajid Sir explains the complete concept of Physical and Chemical Changes (भौतिक एवं रासायनिक परिवर्तन) for REET, 3rd Grade Teacher, LDC, Pashu Parichar, and other competitive exams. We cover definitions, differences, and all important NCERT/RBSE examples like melting of ice, rusting of iron, burning of magnesium, and more.
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video Highlights:
Difference between Physical and Chemical Properties.
Detailed examples of Physical Changes (Sublimation, Crystallization, etc.).
Detailed examples of Chemical Changes (Rusting, Photosynthesis, Digestion).
Tricks to remember Reactivity Series.
Previous Year Questions (PYQs) analysis.
⏱️ Timestamps (Chapters):
[00:00] Introduction & Easy Science Book
[01:24] Basics: What are Physical vs Chemical Properties?
[04:13] Definition of Physical Changes (Bhautik Parivartan)
[09:18] States of Matter & Interconversion (Melting, Freezing)
[12:19] What is Sublimation (Urdhvapatan)? (Camphor, Iodine)
[15:38] Examples: Solutions, Melting Wax, Cutting Wood
[26:15] Magnetization of Iron
[29:16] What is Crystallization?
[31:08] Definition of Chemical Changes (Rasayanik Parivartan)
[37:13] Examples: Burning of Candle vs Melting
[43:54] Fermentation (Curdling of Milk)
[45:52] Digestion, Respiration & Photosynthesis
[50:09] Trick to Remember Reactivity Series (Sakriyata Shreni)
[54:11] Reaction: Copper Sulphate & Iron Nail
[58:51] Reaction: Vinegar & Baking Soda
[01:06:05] Rusting of Iron (Jung lagna) & Galvanization
[01:16:07] Conclusion
Topic Covered in this Video:
Physical and Chemical Changes Class 7, 9, 10 NCERT
Bhautik aur Rasayanik Parivartan in Hindi
Sublimation, Condensation, Evaporation explained
Rusting of Iron formula and prevention
Magnesium ribbon burning experiment
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