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🔴🔵 Litmus Test Using Red & Blue Litmus Paper | Class 7 Science Activity 2.1 | Curiosity 🧪
Welcome to Curiosity – where learning science is fun and hands-on!
In this video, we perform Activity 2.1 from NCERT Class 7 Science (Chapter: Acids, Bases and Salts) using red and blue litmus papers to test the nature of 11 household substances.

✨ Substances Tested in this Activity:
🍋 Lemon Juice
🧼 Soap Solution
🍈 Amla Juice
🌿 Tamarind Water
🍶 Vinegar
🧂 Baking Soda Solution
🍋 Lime Water
💧 Tap Water
🧺 Washing Powder Solution
🍬 Sugar Solution
🧂 Salt Solution

🎯 What You'll Learn:
✔️ How red and blue litmus papers indicate acidic or basic nature
✔️ Color changes with acids and bases
✔️ Identification of acids, bases, and neutral substances
✔️ Real-time litmus reactions using best lab practices

📘 Topic: Acids, Bases, and Salts (Activity 2.1)
🎓 Grade: Class 7 CBSE
🧪 Type: Practical Science Activity
📚 Based on NCERT textbook

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