CBSE Class 5 आस-पास Chapter 5: बीज,बीज,बीज NCERT Solutions
This chapter, "बीज,बीज,बीज" (Seeds, Seeds, Seeds) for CBSE Class 5 आस-पास, delves into the fascinating world of seeds and their germination. The NCERT Solutions provide comprehensive answers to questions about soaking various food items before cooking, the process and time required for sprouting different seeds like chickpeas and moong, and the importance of sprouted foods for health. It also explores factors affecting plant growth, such as water and air, through simple experiments. Students will learn why some seeds sprout and others don't, and what happens when plants lack essential resources. These solutions are designed to clarify concepts and aid students in understanding the life cycle of plants and the significance of seeds, making exam revision more effective.
Quick info
| Board | CBSE |
|---|---|
| Class | Class 5 |
| Subject | आस-पास |
| Session | 2026 |
| Language | Hindi |
| Type | NCERT Solutions |
| Chapter | 5. बीज ,बीज ,बीज |
Chapter summary
Chapter 5, "बीज,बीज,बीज" (Seeds, Seeds, Seeds) for Class 5 आस-पास, focuses on the practical aspects of seeds. It covers why certain food items are soaked before cooking, the method and duration for sprouting seeds like chickpeas and moong, and the health benefits of sprouted foods. The chapter also includes an experiment to understand the conditions necessary for germination, highlighting the roles of water and air. Students will explore reasons for successful and unsuccessful germination and the consequences of inadequate care for young plants.
Learning outcomes
- Understand why different food items are soaked before cooking.
- Learn the process and time required for sprouting various seeds.
- Recognize the nutritional importance of sprouted foods.
- Identify the essential conditions (water, air) for seed germination.
- Explain why some seeds germinate and others do not.
- Describe the effects of insufficient water on plant growth.
Topics covered
Paper topics
- Soaking food items
- Reasons for soaking
- Sprouting seeds
- Process of sprouting
- Time taken for sprouting
- Nutritional value of sprouted food
- Conditions for germination
- Role of water in plant growth
- Role of air in plant growth
- Factors affecting seed germination
- Plant growth and survival
- Seed experiments
Important topics
- Process and importance of sprouting
- Essential conditions for germination (water and air)
- Reasons for soaking food items
- Factors affecting plant growth
- Comparison of different seeds' germination times
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Questions and Solutions
चर्चा करो - प्रश्न 1
चर्चा करो - प्रश्न 2
चर्चा करो - प्रश्न 3
चर्चा करो - प्रश्न 4
चर्चा करो - प्रश्न 5
चर्चा करो - प्रश्न 6
चर्चा करो - प्रश्न 7
चर्चा करो - प्रश्न 8
करके देखो - प्रश्न 1
इस प्रयोग में, हम तीन अलग-अलग परिस्थितियों में चने के बीजों को रखेंगे और देखेंगे कि क्या बदलाव आता है।
| कटोरी 1 | कटोरी 2 | कटोरी 3 | |
| क्या बीजों को हवा मिल रही है? | नहीं (पानी से पूरी तरह डूबे होने के कारण हवा कम मिलेगी) | हाँ | हाँ |
| क्या बीजों को पानी मिल रहा है? | हाँ | हाँ (गीले कपड़े से) | नहीं |
| बीजों में क्या बदलाव आया? | थोड़े फूल गए, लेकिन अंकुरण नहीं हुआ। | अंकुरित हो गए, छोटे अंकुर निकल आए। | कोई बदलाव नहीं, बीज वैसे ही रहे। |
| क्या बीजों में अंकुरण हुआ? | नहीं | हाँ | नहीं |
बताओ और लिखो - प्रश्न 1
बताओ और लिखो - प्रश्न 2
बताओ और लिखो - प्रश्न 3
Common mistakes
- Not understanding that both water and air are crucial for germination.
- Assuming only water is needed for seeds to sprout.
- Not realizing that processed seeds might lose their ability to germinate.
- Inaccurate estimation of time required for sprouting.
Revision tips
- Review the reasons for soaking different food items.
- Memorize the steps and time taken for sprouting common seeds.
- Understand the experimental setup for germination and its results.
- Focus on the role of water and air in plant growth.
- Discuss the health benefits of sprouted foods with classmates.
Practice MCQs
Q1. Which of these food items is typically soaked before cooking because its grains are very hard?
Explanation: Chickpeas (Chana) and similar pulses like Rajma are very hard and require soaking to soften them, reducing cooking time.
Q2. What is the primary reason for soaking seeds like moong or chana overnight before sprouting?
Explanation: Soaking softens the seed coat and hydrates the seed, which is the first step necessary for germination to begin.
Q3. After soaking, how are seeds like moong typically kept to sprout?
Explanation: Sprouting requires moisture and air. Wrapping in a damp cloth provides both, while keeping the seeds from drying out.
Q4. Which of these conditions is essential for a seed to germinate?
Explanation: Seeds need both adequate moisture (water) and oxygen (air) to break dormancy and begin the germination process.
Q5. If a plant's leaves turn yellow and it starts to dry up, what is the most likely cause?
Explanation: Yellowing leaves and drying are common symptoms of a plant not receiving enough water, which is essential for its survival and growth.
Q6. Why might whole masoor dal (lentils) not sprout easily?
Explanation: The processing of lentils into dal can damage the embryo or remove the seed coat's viability, preventing germination.
Frequently asked questions
What is the main topic of Class 5 आस-पास Chapter 5?
Chapter 5, 'बीज,बीज,बीज' (Seeds, Seeds, Seeds), focuses on understanding seeds, why food items are soaked before cooking, the process of sprouting, and the essential conditions for plant growth.
Why do we soak food items like chana or rajma before cooking?
These food items have very hard grains that take a long time to cook. Soaking them makes them soft, reduces cooking time, and makes them easier to digest.
How are seeds sprouted, and how long does it take?
Seeds are typically soaked overnight, then drained and kept wrapped in a damp cloth. They need water and air. Chickpeas might take 36-48 hours, while moong can sprout in 24-32 hours.
What are the essential requirements for a seed to germinate?
For a seed to germinate, it needs adequate water and air. Some seeds also require specific temperature conditions, but water and air are fundamental.
What happens if a plant does not get enough water?
If a plant doesn't receive enough water, its leaves will turn yellow, and eventually, the plant will start to dry up and may die.
Can all seeds be sprouted easily?
Not all seeds can be sprouted easily. Some, like processed masoor dal, may lose their ability to germinate due to the processing they undergo.
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