Get the simplified Class 7 Science Extra Questions and Class 7th Curiosity Chapter 6 Adolescence A Stage of Growth and Change Important Extra Question Answer with complete explanation.
Class 7 Science Chapter 6 Adolescence A Stage of Growth and Change Extra Questions
Class 7 Science Chapter 6 Extra Questions on Adolescence A Stage of Growth and Change
Adolescence A Stage of Growth and Change Class 7 Very Short Question Answer
Question 1.
Adolescence is the period from 13-19 years of age. Is there any other term for this period?
Answer:
Yes, the other term for adolescence is teenage.
Question 2.
Do all the parts of the body grow at the same rate? State yes or no.
Answer:
No, all the parts of the body do not grow at the same rate.
Question 3.
Riya, a 14 years old girl, noticed small, reddish pimples appearing on her face. What condition is Riya experiencing, what causes it during adolescence?
Answer:
Riya is experiencing acne, a condition which is common during adolescence due to increased oily secretions that clog skin pores.
Question 4.
What is the common name of the bulge (or projection) at the front of throat in grown up boys?
Answer:
Adam’s apple.
Question 5.
Changes like deeper voice in boys or breast development in girls are not a part of reproduction, but show growing maturity. What are such changes called?
Answer:
Secondary sexual characteristics
Question 6.
Some characters distinguish a boy from a girl. What are they called as?
Answer:
Secondary sexual characters distinguish a boy from a girl.
Question 7.
List any one secondary sexual characteristic in girls.
Answer:
Development of breasts
Question 8.
Fatima missed school because of lower abdominal pain and bleeding for a few days. What natural process was she experiencing?
Answer:
Fatima was experiencing menstruation, a monthly process in adolescent girls.
Question 9.
Give a suitable word for each of the following Statements.
(i) Chemicals which control changes at adolescence stage.
(ii) It marks the beginning of reproductive period.
Answer:
(i) Hormones
(ii) Puberty
Question 10.
Name the types of nutrients which are important for staying active and growing well during teenage years?
Answer:
Proteins and carbohydrates.
Question 11.
Why doctors prescribe iron tablets to the women?
Answer:
Doctors prescribe iron tablets to women to prevent or treat iron deficiency, which is common due to blood loss during menstruation.
Question 12.
Observe the relation between first two words and then fill in the fourth word.
Shuchi scheme : Karnataka :: Free sanitary napkin scheme:
Answer:
Tamil Nadu and Odisha
Question 13.
Which habit during adolescence can help improve both stamina and emotional well-being?
Answer:
Regular exercise or participation in physical activities.
Question 14.
A teacher noticed Rohan copying dangerous stunts he saw online. What advice should the teacher give about social media?
Answer:
The teacher should advise Rohan to use social media responsibly and avoid risky or harmful behaviour.
Question 15.
Trying harmful things again and again because of pressure or curiosity can lead to a serious habit. What is this habit called?
Answer:
Substance abuse.
Question 16.
Megha heard about the “Nasha Mukt Bharat Abhiyaan’1 during school assembly. What is the main goal of this program?
Answer:
The Nasha Mukt Bharat Abhiyaan aims to spread awareness against substance abuse.
Adolescence A Stage of Growth and Change Class 7 Short Question Answer
Question 1.
Give the definition of adolescence as stated by the WHO. Why is adolescence also called teenage?
Answer:
The World Health Organisation (WHO) defines adolescence as the period of life between 10 and 19 years of age. Since, adolescence period covers the teens period, i.e. 13-19 years of age, adolescence is also called as ‘teenage’.
Question 2.
Salma had a very soft and smooth skin during her childhood. As she entered adolescence, she developed pimples on her face. The skin specialist advised her to wash her face at regular intervals. Can you explain the reasons for the appearance of pimples on her face and suggest ways to prevent them?
Answer:
During adolescence, the secretion of oil from the skin increases leading to the formation of acne and pimples. Regular face wash keeps the face clean and dry and helps to reduce the pimples.
Question 3.
Mention any two features that are seen in boys and girls each to distinguish them from each other at puberty.
Answer:
- Two features seen in boys at puberty are
- Growth of facial hair.
- Voice becomes hoarse.
- Two features seen in girls at puberty are
- Development of breasts.
- Region below the waist becomes wider.
Question 4.
Raghav noticed a bump-like structure becoming more visible in his neck over the past few months. What is this structure called and why does it become prominent during adolescence in boys?
Answer:
The bump-like structure is called the Adam’s apple. It becomes prominent in boys during adolescence due to the growth of the larynx (voice box) under the influence of male hormones. As the larynx grows, the voice deepens and the front part of the throat becomes more visible, forming the Adam’s apple.
Question 5.
Expand the following terms.
(i) MHS
(ii) RKSK
Answer:
(i) Menstrual Hygiene Scheme
(ii) Rashtriya Kishor Swasthya Karyakram
Question 6.
Lila always eats only dal and rice in every meal. She often falls ill and has become prone to diseases. Can you suggest changes in her diet which can make her healthy and free from disease? Competency Based Que.
Answer:
Lila’s diet is not a balanced diet because her meal does not contain the adequate nutritional requirement. She takes only proteins and carbohydrates in every meal. She requires vitamins and minerals in her meal to protect her from various diseases.
Thus, I would suggest her to include fruits and vegetables in her meal as a source of vitamins and minerals.
Question 7.
Given below are certain food items required for proper nourishment of adolescents. Name the nutrients present in the food items and write their functions.
| Food items | Major nutrients | Functions |
| Pulses and nuts | Proteins | Growth, repair of body cells. |
| Orange and amla | Vitamin-C and iron | Improved immunity, formation of blood. |
| Sugar and roti | Carbohydrates | Provide energy. |
| Oils | Fats | Provide energy. |
| Vegetables | Vitamins and minerals | Keeps the body healthy and disease free. |
Question 8.
Suggest two food items rich in iron and explain why iron is important during teenage years.
Answer:
Spinach and raisins are the two food items rich in iron. It helps in the formation of blood and prevents tiredness.
Question 9.
What is substance abuse and what are some health problems it can cause?
Answer:
Substance abuse is the repeated and harmful use of substances like drugs, tobacco or alcohol. Over time, using these substances can lead to serious health problems such as breathing difficulties, memory loss and damage to the lungs, depending on the type of substance used.
Question 10.
We should avoid taking medicines/drugs unless prescribed by a doctor. Give reasons, NCERT Exemplar
Answer:
We should avoid taking medicines/drugs unless prescribed by a doctor because
- several medicines have adverse side effects and have specific dosage levels which may harm the body if not followed.
- drugs can be addictive too and can ruin our health and happiness.
Adolescence A Stage of Growth and Change Class 7 Long Question Answer
Question 1.
List any four common physical changes during adolescence in the given table and write the observations occuring in the body.
| Physical changes | Observations |
| Increase in height | Bones grow longer and stronger, helping the body to attain adult size. |
| Weight gain and strength | Muscles develop, preparing the body for more physical work. |
| Appearance of hair | Hair grows in the armpits, pubic region and on the face (in boys), indicating maturity. |
| Changes in voice | Boys develop deeper voices as their voice box enlarges, a sign of sexual maturity. |
Question 2.
Aashima is going through some emotional changes during adolescence. List any two emotional changes and explain how she can deal with them in healthy ways.
Answer:
| Emotional changes | Ways for positive growth and development. |
| Mood swings | Engage in hobbies like sports. music or art to balance emotions. |
| Strong emotions | Talk to trusted adults and practice deep breathing or mindfulness to manage emotions. |
Question 3.
Complete the following table by filling in the missing food sources, nutrients and their functions.
| Food sources | Nutrient we gel from them | Functions of these nutrients |
| Milk | Calcitim | |
| Proteins | Growth | |
| Amia, spinach | Formation of blood |
Answer:
| Food sources | Nutrient we gel from them | Functions of these nutrients |
| Milk | Calcitim | Development of healthy bones |
| Paneer, pulses | Proteins | Growth |
| Amia, spinach | Iron | Formation of blood |
Question 4.
Observe the image on physical activities.
List four benefits of physical activities for adolescents.
Answer:
Benefits of physical activities for adolescents are as follows
- Increases body strength and fitness.
- Boosts mood and reduces stress.
- Improves blood circulation and stamina.
- Helps to maintain healthy body weight.
Question 5.
Give any two Dos and two Don’ts to be followed on social media and explain why each is important for staying safe online.
Answer:
Dos
(i) Be respectful and kind online Helps in creating a safe, positive environment.
(ii) Protect your privacy Keeps personal information safe from strangers and cyberbullies.
Don’ts
(i) Share personal photos with strangers They can misuse your images.
(ii) Post anything without thinking Once shared, it stays online forever and can harm your reputation.
Question 6.
Examine the before and after image of lungs.
What message does this image give? Explain how harmful substances affect the body, especially during adolescence.
Answer:
The image shows healthy lungs before smoking and blackened, damaged lungs after smoking. It warns that tobacco and smoking can damage the lungs, making breathing difficult and causing diseases like cancer. Adolescents are more vulnerable as their bodies are still growing; harmful substances can stop proper development and cause lifelong health problems.
Adolescence A Stage of Growth and Change Class 7 Case Based Questions
Question 1.
Rohan and Seema were childhood friends. When Seema became eleven years old her breasts started developing. Rohan’s voice became deeper his shoulder and chest became wider.
(i) Give a word for the characteristics that are developed in Rohan and Seema?
Answer:
Both Rohan and Seema have developed secondary sexual characters.
(ii) Name the chemicals which are responsible for these sexual characteristics in Seema.
Answer:
Hormones are responsible for these sexual characteristics in Seema.
(iii) After a few years Rohan observed a bulge in his neck. What could be the possible reason for this bulge in his neck?
Answer:
The bulge in Rohan’s neck is called Adam’s apple. It is formed because male’s larynx grow bigger during puberty.
Question 2.
When Sudha reached a certain age the vaginal bleeding started occurring after regular interval of time. Her mother told her to take special care of her personal hygiene during this period.
(i) Name the process occurring after regular intervals.
Answer:
This process is known as menstruation.
(ii) What does the onset of this process in females signify?
Answer:
The onset of menstruation signifies that the reproductive system of female has started working.
(iii) Give reason why her mother told her to take special care of her personal hygiene during this period.
Answer:
er mother told her to take special care of her personal hygiene during this period because if it is not maintained there might be chances of occurrence of bacterial infections.
Adolescence A Stage of Growth and Change Class 7 Skill Based Questions
Question 1.
According to 2011 census report of India, there are 940 adolescent females for every 1000 males. How does the patriarchal mindset impact the perception of gender and contribute to the sex ratio disparity?
Answer:
Patriarchal mind-set gives preference to boys over girls. This leads to gender-based discrimination, female foeticide and less access to education and healthcare for girls, contributing to a lower number of adolescent females compared to males.
Question 2.
Amit was very good in study. But as he attained the age of years, he became dull and lethargic.
Asked by his teacher, Amit told that he is very worried about the changes that are taking place in his body such as hoarse voice, height, etc. The teacher smiled and explained that it is a normal process of growing up.
(i) Mention some of the changes that Amit must be going through.
Answer:
Voice change, increase in height and weight, growth of facial and body hair, mood swings and development of secondary sexual characters.
(ii) What is this special period of life known as?
Answer:
Adolescence
(iii) Can you explain the reason of his hoarse voice?
Answer:
During adolescence, the voice box (larynx) grows especially in boys. The vocal cords become longer and thicker, leading to a hoarse voice or voice cracking.
Question 3.
In some communities, menstruating girls are not allowed to attend school or enter the kitchen. They are isolated or told to follow unfair restrictions based on traditional beliefs. As a student who has learned about menstrual hygiene and health, what is your view on this issue? How would you raise awareness in your school or community to promote a scientific and respectful approach to menstruation?
Answer:
These restrictions are based on myths and are scientifically incorrect. I would raise awareness by conducting sessions in school on menstrual hygiene, promoting open discussions and encouraging respectful behaviour. Education is key to ending discrimination and promoting health.
Question 4.
Word Game: Use the clues to work out the words.
Across
2. Mineral that helps in the formation of blood.
3. Cloth or product used during menstruation.
6. Monthly cycle experienced by adolescent girls.
7. Nutrient needed for strong bones and teeth.
Down
1. Nutrient that builds muscles and tissues.
4. Stage of development between childhood and adulthood.
5. Condition marked by red spots on the face during adolescence.
Answer:
Across
2. Iron – Mineral that helps in the formation of blood.
3. Sanitary pad – Cloth or product used during menstruation.
6. Menstrual cycle – Monthly cycle experienced by adolescent girls.
7. Calcium – Nutrient that builds muscles and tissues.
Down
1. Calcium – Nutrient needed for strong bones and teeth.
4. Adolescence – Stage of development between childhood and adulthood.
5. Acne – Condition marked by red spots on the face during adolescence.
Adolescence A Stage of Growth and Change Extra Questions for Practice
Question 1.
What is adolescence?
Question 2.
How often does menstruation usually occur?
Question 3.
At what age does menstruation typically stop in women?
Question 4.
Mention two physical changes that are common in both boys and girls during adolescence.
Question 5.
Why should adolescents avoid addictive substances?
Question 6.
Why do adolescents need to pay attention to personal hygiene?
Question 7.
Why iron is needed by our body? Give reason and name some of the iron-rich foods?