By Grandmaster Bikram Sutradhar
🏆 BEST TEACHER AWARD WINNER 2023 | 🌍 5-Time World Record Holder

🌿 UNIT 1: PLANTS AND ANIMALS

📘 Chapter: HOW PLANTS GROW

Topic: 🌱 Plant Reproduction | पौधों का प्रजनन

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📝 Exercise Time | अभ्यास समय

1. How are plants useful to us?

Plants give us food, oxygen, clothes, medicines & shelter. They clean the air too.
पौधे हमें खाना, ऑक्सीजन, कपड़े, दवाइयाँ और आश्रय देते हैं। ये हवा को भी शुद्ध करते हैं।
🌿🍎🥬💨🧣🏡💊

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2. What do you mean by reproduction?

Reproduction is the process of making new plants.
प्रजनन वह प्रक्रिया है जिससे नए पौधे बनते हैं।
🌱➕🌱➡️🌳

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3. How does jasmine produce new plants?

Jasmine grows new plants by stem cutting.
चमेली तने की कटिंग से नए पौधे उगाती है।
✂️🌿➕🪴

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4. How do new plants grow from roots? Give an example.

Plants like sweet potato grow from roots.
शकरकंद जैसे पौधे जड़ों से उगते हैं।
🍠➡️🌱🌿

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5. Explain what you understand by germination.

A seed turns into a plant when it receives sunlight, air, and moisture.
जब किसी बीज को धूप, हवा और नमी मिलती है, तब वह पौधा बन जाता है।
☀️💨🌧️➕🌰➡️🌿

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6. What is dispersal of seeds? Give some examples.

Spreading of seeds by wind, water, animals or explosion.
बीजों का फैलाव हवा, पानी, जानवरों या फटने से होता है।
💨➡️कपास | 🌊➡️नारियल | 🐿️➡️गोकुलकांट | 💥➡️बैल्सम

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7. What is the difference between Kharif and Rabi crops?

Kharif: Rainy season crops – June to October
Rabi: Winter crops – November to April
खरीफ: बरसात की फसलें | रबी: सर्दी की फसलें
☔🌽🥜 | ❄️🌾🥕

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8. How can healthy crops be grown?

By using good seeds, fertilizers, water, weeding & protection.
अच्छे बीज, खाद, पानी, निराई और सुरक्षा से फसलें स्वस्थ होती हैं।
🌱✅🧪💧🧹🐞

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✏️ answerFill in the blanks | रिक्त स्थान भरिए

1. Different plants reproduce in different ways
   🌿➕🌿
2. A potato has small buds on it. These are called eyes
   🥔👁️
3. Onion and ginger are stems
   🧅➕🌿
4. water
   🥥🌊
5. soil
   🌱🌍
6. Pesticides and insecticides
   🐛🚫🌾

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✅ True or False | सही / गलत

1. ✅
2. ❌
3.  ✅
4. Rats & insects are helpful for crops – ❌
5. Kharif crops are from Nov to April – ❌
6. ❌
   🪢🧵🍚💥🐀🥩

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🔄 Match the following | मिलान कीजिए

Column A	Column B
Coconut	🌊 Dispersal by water
Cotton	💨 Dispersal by wind
Mango	🐒 Dispersal by animals
Pea	💥 Dispersal by explosion
Pesticides	🐛 Kill pests
Insecticides	🦗 Kill insects

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✌️ Give Two Examples | दो-दो उदाहरण दीजिए

1. Plants with one seed:
   Mango, Peach | आम, आड़ू
   🥭🍑
2. Plants with many seeds:
   Guava, Pomegranate | अमरूद, अनार
   🍈🍎
3. Artificial fertilizers:
   Urea, Super Phosphate | यूरिया, सुपर फॉस्फेट
   🧪🌿
4. Rabi Crops 🌾:
   Examples: Wheat, Mustard | गेंहू, सरसों
5. Kharif Crops 🌽:
   Examples: Paddy, Maize | धान, मक्का
6. Food Crops 🍚🥦:
   Examples: Rice, Wheat, Vegetables | चावल, गेंहू, सब्ज़ियाँ

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🎯 Activity Time | गतिविधि समय

1. Seeds Dispersed by Animals

जानवरों द्वारा फैलाए गए बीज:
🐒🍈 Guava (अमरूद)
🐿️🍎 Pomegranate (अनार)
🦍🥭 Mango (आम)
🐂🌰 Xanthium (गोकुलकांट)
🦝🥥 Coconut (नारियल)

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2. Crossword Puzzle | शब्द पहेली हल करें

Across ➡️

1. 🐞 Chemical used to kill pests – Pesticide
2. 🐄 Fertiliser made from cow dung – Manure
3. 🌬️ Scattering of seeds – Dispersal
4. 🌾 A Rabi crop – Wheat

Down ⬇️

5. 🧥 That covers a seed – Seed coat
6. 🌱 Seed leaves – Cotyledons
7. 👶 Baby plant – Embryo
8. 🌿 Baby shoot grows into – Shoot (Corrected from “Ooty”)

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🧪 Things to Do | करने योग्य कार्य

🌱 How do seeds germinate? | बीज कैसे अंकुरित होते हैं?

Materials | सामग्री:
✅ Gram seeds (चना)
✅ 4 shallow plates
✅ Cotton
✅ Water
✅ Sunlight and Air

Steps | प्रक्रिया:

1. 🧫 Place cotton in 4 plates.
2. 🌱 Put few gram seeds on each.
3. 🏷️ Label: A, B, C, D

Plate	Conditions	Result
A	☀️💧💨 Sunlight + Water + Air	🌱✅ Germinates
B	❄️💧 Moist cotton in fridge	🌱❌ No warmth
C	☀️💨 Dry cotton, no water	🌱❌ No moisture
D	☀️💧 In water, no air	🌱❌ Seeds rot

Conclusion | निष्कर्ष:
✔️ Seeds need Air, Water, and Sunlight to germinate.
✔️ बीजों के अंकुरण के लिए हवा, पानी और धूप ज़रूरी है।
✅☀️💨💧 ➡️ 🌱

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Written By

Full Stack Developer and 5-Time World Record Holder, Grandmaster Bikram Sutradhar

bAstronautWay

SirBikramSutradhar on YouTube                                                               

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ICSE CLASS 10 ICSE CLASS 10 BIOLOGY BASTRONAUTWAY SirBikramSutradhar Bikram Sutradhar GrandMaster Bikram Sutradhar selina biology solutions ICSE Biology Selina Solution

📚 Class 9 Science – Complete Table of Contents (विषय-सूची)

CBSE | NCERT Curriculum | Bilingual (English + Hindi)
By Grandmaster Bikram Sutradhar | SirBikramSutradhar | BASTRONAUTWAY

🔬 PHYSICS (भौतिक विज्ञान)

🔢	Chapter Title (English)	अध्याय का नाम (हिंदी)	Page No.
1️⃣	Motion	गति
2️⃣	Force and Laws of Motion	बल तथा गति के नियम
3️⃣	Gravitation	गुरुत्वाकर्षण
4️⃣	Work and Energy	कार्य तथा ऊर्जा
5️⃣	Sound	ध्वनि

🧪 CHEMISTRY (रसायन विज्ञान)

🔢	Chapter Title (English)	अध्याय का नाम (हिंदी)	Page No.
1️⃣	Matter in Our Surroundings	हमारे आस-पास के पदार्थ
2️⃣	Is Matter Around Us Pure?	क्या हमारे आस-पास के पदार्थ शुद्ध हैं?
3️⃣	Atoms and Molecules	परमाणु एवं अणु
4️⃣	Structure of the Atom	परमाणु की संरचना

🧬 BIOLOGY (जीव विज्ञान)

🔢	Chapter Title (English)	अध्याय का नाम (हिंदी)	Page No.
1️⃣	The Fundamental Unit of Life	जीवन की मौलिक इकाई
2️⃣	Tissues	ऊतक
3️⃣	Improvement in Food Resources	धनों में सुधार

📘 ADDITIONAL SECTIONS (अतिरिक्त अनुभाग)

📖 Section	Title (English + Hindi)
🔹	Glossary / पारिभाषिक शब्दावली
🔹	Answer Keys / उत्तरमाला
🔹	Summary / सारांश
🔹	Important Diagrams / महत्वपूर्ण चित्र
🔹	NCERT Exercises / एनसीईआरटी अभ्यास
🔹	Sample Papers & MCQs / मॉडल पेपर व वस्तुनिष्ठ प्रश्न

✅ All content follows the official NCERT Class 9 Science textbook structure. Each chapter will include explanations, bilingual notes, definitions, diagrams, MCQs, FAQs, and practice exercises under the BASTRONAUTWAY learning system.

class 10 Maths ncert solution.

CBSE Class 10 Mathematics (2025) NCERT Syllabus:

CBSE Class 10 Mathematics NCERT Syllabus (2025) – Chapter-Wise List

CBSE Class 10 Mathematics NCERT Syllabus (2025) – Chapter-Wise List

chapter 1. Real Numbers

chapter 2. Polynomials

chapter 3.  Linear Equations

chapter 4. Quadratic Equations

chapter 5. Arithmetic Progressions

chapter 6. Triangles

chapter 7. Coordinate Geometry

chapter 8. Introduction to Trigonometry

chapter 9. Some Applications of Trigonometry

chapter 10. Circles

chapter 11. Areas Related to Circles

chapter 12. Surface Areas and Volumes

chapter 13. Statistics

chapter 14. Probability

CBSE Class 10 Science (2025) NCERT Syllabus:

CBSE Class 10 Science NCERT Syllabus (2025) – Chapter-Wise List

CBSE Class 10 Science NCERT Syllabus (2025) – Chapter-Wise List

Chapter 1 Chemical Reactions and Equations 
Chapter 2 Acids, Bases and Salts 
Chapter 3 Metals and Non-metals 
Chapter 4 Carbon and its Compounds 
Chapter 5 Life Processes 
Chapter 6 Control and Coordination 
Chapter 7 How do Organisms Reproduce? 
Chapter 8 Heredity 
Chapter 9 Light – Reflection and Refraction 
Chapter 10 The Human Eye and the Colourful World 
Chapter 11 Electricity 
Chapter 12 Magnetic Effects of Electric Current 
Chapter 13 Our Environment

📖 Chapter 12 – Organic Chemistry (Selina Textbook)

Table of Contents:

• 12A. Organic Compounds
• 12B. Hydrocarbons: Alkanes
• 12C. Hydrocarbons: Alkenes
• 12D. Hydrocarbons: Alkynes
• 12E. Alcohols
• 12F. Carboxylic Acids
• Exercise 12 MISCELLANEOUS
• Glossary
• Model Question Paper –

📌 Exercise 12 MISCELLANEOUS – Focus Areas:

• 🧬 Consolidated practice from the entire Organic Chemistry chapter
• 🧪 Application-based questions covering alkanes, alkenes, alkynes, alcohols, and carboxylic acids
• 🧾 Writing structural formulas and chemical equations
• 💡 Distinguishing reactions, isomer identification, and conversions
• 📘 Full-syllabus revision to boost conceptual clarity and board exam readiness

Each question in this section is designed to:

• ✅ Strengthen cross-topic understanding
• 📝 Prepare students for application-based and reasoning-based questions
• 🧠 Improve problem-solving speed and exam performance

 class 5