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NCERT Solutions for Class 8 Science Chapter 10 Reaching the Age of Adolescence

by aglasem
August 24, 2021
in 8th Class
Reading Time: 1 min read
0
NCERT Solutions

NCERT Solutions Class 8 Science Chapter 10 Reaching the Age of Adolescence  – Here are all the NCERT solutions for Class 8 Science Chapter 10. This solution contains questions, answers, images, explanations of the complete chapter 10 titled Reaching the Age of Adolescence From of Science taught in class 8. If you are a student of class 8 who is using NCERT Textbook to study Science, then you must come across chapter 10 Reaching the Age of Adolescence . After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 8 Science Chapter 10 Reaching the Age of Adolescence in one place.

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NCERT Solutions Class 8 Science Chapter 10 Reaching The Age Of Adolescence

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Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 8 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.

For a better understanding of this chapter, you should also see summary of Chapter 10 Reaching The Age Of Adolescence , Science, Class 8.

Class 8
Subject Science
Book Science
Chapter Number 10
Chapter Name

Reaching The Age Of Adolescence

NCERT Solutions Class 8 Science chapter 10 Reaching The Age Of Adolescence

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Class 8, Science chapter 10, Reaching The Age Of Adolescence solutions are given below in PDF format. You can view them online or download PDF file for future use.

Reaching The Age Of Adolescence Download

NCERT Solutions for Class 8 Science Chapter 10 Reaching the Age of Adolescence Download

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Download NCERT Solutions Class 8 Science chapter 10 Reaching The Age Of Adolescence In PDF Format

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Question & Answer

Q.1: What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body?

Ans : Hormones are chemical substances which are secreted by endocrine glands. They are responsible for changes taking place in the body.

Q.2: Define adolescence.

Ans : Adolescence is the time period between the beginning of puberty and adulthood. During this period, the body undergoes several changes alongside reproductive maturity. It begins around the age of 11 and lasts till 18 or 19 years of age. The period of adolescence may vary from person to person.

Q.3: What is menstruation? Explain.

Ans : Menstruation is the process of the shedding of the uterine lining on a regular monthly basis. It begins at puberty and is the reproductive cycle of the female body. Every month, the uterus prepares itself to receive a fertilized egg. Therefore, the inner lining of the uterus becomes thick and is supplied with blood to nourish the embryo. If the egg is not fertilized, then the lining of the uterus breaks down and gets released in the form of blood through the vagina. This lasts for about two to eight days. This cycle occurs every month and is known as the menstrual cycle.

Q.4: List changes in the body that take place at puberty.

Ans : Changes at puberty: (i) Sudden increase in height and weight. (ii) Broadening of shoulders and widening of chest in boys, In girls, the region below waist becomes wider. (iii) In boys, under the influence of hormones, the larynx becomes prominent, the vocal cords become longer and thicker. These changes cause the voice to become hoarse. (iv) Appearance of hair in areas such as underarms, face, hands, and legs. (v) Appearance of acne as a result of excessive secretion of oil from skin. (iv) Testis grows and starts producing sperms in males, whereas in females, the ovary enlarges and starts producing matured eggs.

Q.5: What are sex hormones? Why are they named so? State their function.

Ans : Sex hormones are chemical substances produced by sex organs. For example, testosterone is the male sex hormone produced by the testis, and oestrogen is the female sex hormone produced by the ovary. These hormones affect the sexual features of an organism. Hence, they are known as sex hormones. Functions of sex hormones: Testosterone: This hormone brings about secondary sex characters in boys such as the growth of a beard, the voice becoming hoarse, development of reproductive organs, etc. Oestrogen: This hormone is responsible for the development of secondary sexual characters in females such as the enlargement of breasts, development of female reproductive organs, etc.

NCERT / CBSE Book for Class 8 Science

You can download the NCERT Book for Class 8 Science in PDF format for free. Otherwise you can also buy it easily online.

  • Click here for NCERT Book for Class 8 Science
  • Click here to buy NCERT Book for Class 8 Science

All NCERT Solutions Class 8

  • NCERT Solutions for Class 8 English
  • NCERT Solutions for Class 8 Hindi
  • NCERT Solutions for Class 8 Maths
  • NCERT Solutions for Class 8 Science
  • NCERT Solutions for Class 8 Social Science
  • NCERT Solutions for Class 8 Sanskrit

All NCERT Solutions

You can also check out NCERT Solutions of other classes here. Click on the class number below to go to relevant NCERT Solutions of Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

Class 1 Class 2 Class 3
Class 4 Class 5 Class 6
Class 7 Class 8 Class 9
Class 10 Class 11 Class 12

Download the NCERT Solutions app for quick access to NCERT Solutions Class 8 Science Chapter 10 Reaching The Age Of Adolescence. It will help you stay updated with relevant study material to help you top your class!


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