The Class 7 Science Curiosity Chapter 6 Adolescence : A Stage of Growth and Change is all about the transition period between childhood and adulthood.
Have you ever wondered why you are suddenly growing taller, developing new interests, or feeling stronger emotions? These are all signs that you are entering a unique and important stage of life called adolescence.
Adolescence is the period between childhood and adulthood, usually from the ages of 10 to 19 years. During this time, your body and mind go through major transformations. You grow in height, your voice may change, and you may notice new hair growth in certain areas of the body. Girls begin menstruating, and both boys and girls develop physical features that prepare them for adulthood.
But adolescence is not only about physical changes. It’s also a time when your emotions, behaviour, and even your social life begin to change. You may start to feel more independent, experience mood swings, or become curious about relationships and identity.
A Stage of Growth and Change Worksheet
This chapter will help you:
- Understand the physical, emotional, and behavioral changes during adolescence.
- Learn how to maintain personal hygiene, follow a healthy diet, and deal with peer pressure.
- Discover how to make responsible choices, stay away from harmful substances, and use social media wisely.
- Break common myths about menstruation and understand the importance of hormones in the growth process.
Also download:
Class 7 Science Worksheet Curiosity
Class 7th Science NCERT Solutions Curiosity
- S Gupta & New Age Editorial Team
A Stage of Growth and Change Notes
Stages of Life in Humans:
- Infancy → Childhood → Adolescence → Adulthood → Old Age
Physical Changes:
- Increase in height and weight
- Broadened shoulders in boys; development of breasts in girls
- Growth of body and facial hair
- Development of Adam’s apple in boys (change in voice)
- Appearance of pimples (acne)
- Onset of menstruation in girls
Secondary Sexual Characteristics:
- Features that distinguish males and females but are not directly related to reproduction (e.g., voice change, facial hair, breast development)
Puberty:
- Stage where the body becomes capable of reproduction
- Triggered by hormones
Emotional and Behavioral Changes:
- Mood swings
- Increased sensitivity
- Strong emotions
- Curiosity and need for self-expression
Healthy Lifestyle Tips:
- Balanced diet rich in proteins, iron, vitamins
- Proper hygiene (especially menstrual hygiene)
- Regular physical exercise
- Avoiding harmful substances (tobacco, alcohol, drugs)
- Responsible use of social media
Government Initiatives:
- Menstrual Hygiene Scheme (MHS)
- Rashtriya Kishor Swasthya Karyakram (RKSK)
- Suvidha Sanitary Napkin Initiative
- Nasha Mukt Bharat Abhiyaan
Class 7 Science Curiosity Chapter 6 Question Answer
Q1. What is adolescence? Why is it considered an important stage of life?
Ans: Adolescence is the stage of life between childhood and adulthood, usually between the ages of 10 and 19. It is important because the body undergoes several physical, emotional, and hormonal changes during this time, preparing it for adulthood and reproductive capability.
Q2. What is puberty? How is it related to adolescence?
Ans: Puberty is the phase during adolescence when the body becomes capable of reproduction. It includes both internal and external changes such as development of reproductive organs, menstrual cycle in girls, and voice change in boys.
Q3. What are hormones? How do they affect adolescents?
Ans: Hormones are chemical substances produced by glands in our body that control various functions, including growth and development. During adolescence, hormones trigger changes such as height increase, development of secondary sexual characteristics, mood swings, and behavioral changes.
Q4. List three emotional or behavioral changes observed during adolescence.
Ans:
Mood swings
Increased sensitivity and self-consciousness
Stronger emotional responses like anger, excitement, or sadness
Q5. Why do some adolescents get pimples or acne?
Ans: During adolescence, hormonal changes increase the production of oil in the skin. This can clog skin pores and cause bacterial infections, leading to pimples or acne.