Last Updated on February 21, 2025 by sanjjeett
The NCERT Solutions have been updated for 2024-2025 sessions, with the new NCERT Books. All questions are solved with detailed explanation of each and every questions. In this article, we are providing NCERT Solutions for Class 8 Science Chapter 7 Reaching the Age of Adolescence. It is a part of NCERT Solutions for Class 8 Science series.
| Chapter | Reaching the Age of Adolescence |
| Textbook | NCERT |
| Type of Material | NCERT Solutions |
| Format | Question-Answer Format |
| Class | 8 |
| Subject | Science |
| Useful for | Class 8 Studying Students |
| Session | 2024-25 |
| No. of Intext Questions | 9 |
| Exercise Questions | 7 |
| Solutions provided | Yes |
| Important Link | NCERT Solutions for Class 8 Science |
Reaching the Age of Adolescence NCERT Solutions Class 8
NCERT Solutions for Class 8 Science Chapter 7, Reaching the Age of Adolescence, offer clear, step-by-step answers to all textbook questions. Expertly crafted, these solutions simplify complex concepts, enhance understanding, and build confidence, helping students excel in their studies.
Intext Questions
Page-79
Q. 1. Boojho began wondering how long this period marked by changes in the body would last.
Ans. The period of adolescence begins around the age of 11 and lasts up to 18 or 19 years of age.
Page-79
Q. 2. Paheli, on the other hand, was worried about this period of life when you are neither a child nor an adult. She wondered whether this period between childhood and adulthood had a special name.
Ans. The period of life, when the body undergoes changes, leading to reproductive maturity is called adolescence.
Page-80
Q. 3. Paheli and Boojho realised that sudden increase in height and hairy line above the lips in boys were signs of adolescence. They wanted to know about other changes at puberty.
Ans. The other changes in the body includes:
(a) Increase in height
(b) Change in body shape
(c) Voice change
(d) Increased activity of sweat and sebaceous glands
(e) Reaching mental, intellectual and emotional maturity
(f) Development of sex organs.
Page-82
Q. 4. Boojho says that many of my classmates have a hoarse voice. why?
Ans. At puberty, the voice box or the larynx begins to grow. Boys develop larger voice box. Sometimes, the muscles of the growing voice box go out of control and the voice becomes hoarse. This state may remain for a few days or weeks after which the voice becomes normal.
Page-83
Q. 5. Boojho and Paheli wish to know what initiates changes at puberty.
Ans. Endocrine gland (pituitary gland) stimulates the testes in boys and ovaries in girls to release testosterone (in males) and estrogen (in females). These hormones are released in blood stream and reach the target site to stimulate changes at puberty.
Page-84
Q. 6. Paheli says that the reproductive life of a woman lasts from menarche to menopause. Is she right?
Ans. Yes, she is right. In females, the reproductive phase of life begins at puberty and generally lasts till the age of 45 to 50 years. Ovum matures and if fertilisation does not occur, the released egg and the thickened lining of the uterus, along with blood is shed off is called menstruation. The first flow is termed menarche and the stoppage of this bleeding in women is called menopause.
Q. 7. Paheli heard her mother and her aunt talking about her cousin who is going to have a baby. They were discussing whether she would give birth to a boy or a girl. She wonders what makes the fertilised egg develop either into a boy or a girl! (Easy)
Ans The thread-like structures called chromosomes present in fertilised egg determine the sex of the baby.
Page-86
Q. 8. Are there hormones in other animals also? Have they any role to play in reproduction?
Ans. Yes, animals too have hormonal secretions. Yes, hormones play an important role in reproduction
Q. 9. If people do not have enough iodine in their diet, will they get goitre caused by lack of thyroxine?
Ans. Yes, if people do not have enough iodine in their diet, they will get goitre caused by lack of thyroxine.
Exercise Questions
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| Reaching the Age of Adolescence Case Study Questions | Reaching the Age of Adolescence Assertion Reasoning |
Also check
- NCERT Solutions for Class 8 Science Chapter 8 Force and Pressure
- NCERT Solutions for Class 8 Science Chapter 7 Reaching the Age of Adolescence
- NCERT Solutions for Class 8 Science Chapter 6 Reproduction in Animals
- NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals
- NCERT Solutions for Class 8 Science Chapter 4 Combustion and Flame
- NCERT Solutions for Class 8 Science Chapter 3 Coal and Petroleum
- NCERT Solutions for Class 8 Science Chapter 2 Microorganisms: Friend and Foe
- NCERT Solutions for Class 8 Science Chapter 1 Crop Production and Management
🔗 Explore More: Find all NCERT solutions here → NCERT Solutions for Class 1 to 12
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Frequently Asked Questions (FAQs) on Reaching the Age of Adolescence Class 8 NCERT Solutions
Q1: What are NCERT Solutions?
A1: NCERT Solutions are detailed, step-by-step answers to the questions provided in the NCERT textbooks. They are designed to help students understand the concepts thoroughly and prepare effectively for their exams.
Q2: Why are NCERT Solutions important for students?
A2: NCERT Solutions are crucial for students because they offer clear explanations and step-by-step guidance on solving textbook problems. They help in building a strong foundation in each subject, making it easier for students to grasp complex concepts and perform well in their exams.
Q3: Are the NCERT Solutions available for free on Xam Content?
A3: Yes, all the NCERT Solutions on our website are available for free. We believe in making education accessible to all students, ensuring that everyone can benefit from our resources without any cost.
Q4: How can NCERT Solutions help in exam preparation?
A4: NCERT Solutions help in exam preparation by providing thorough explanations and solutions to textbook problems. They ensure that students understand the core concepts and are well-prepared for any type of question that may appear in their exams.
Q5:Â Are NCERT solutions enough for scoring good marks in Class 8 Science exams?
A5: Yes, NCERT solutions cover the entire syllabus prescribed by CBSE for Class 8 Science. If students thoroughly understand and practice these solutions, they can definitely score well in their exams. However, it’s also beneficial to supplement your studies with additional reference materials and practice questions. For various types of questions asked in social science exam, you can visit xamcontent.com.
