Class 8 Science Chapter-15 Reaching the Age of Adolescence DAV|CBSE Book 2021

Class 8 Science Chapter-15 Reaching the Age of Adolescence DAV|CBSE Book 2021 

Hello Students, Toady we are starting our Class 8 Science Chapter-15 Reaching the Age of Adolescence DAV|CBSE Book 2021. If You are in class 8 and looking for Class 8 Science Chapter-15 Reaching the Age of Adolescence DAV|CBSE Book 2021. Then you are absolutely at a right place of B2C2 Academy. 

If You Find any Difficulty then fell free to

Contact us.

"Let's Study Together"

Class 8 Science Chapter-15 : Reaching the Age of Adolescence 

This Post Contains All The Exercises of Chapter 15 Science Of Class 8.

• A.Fill In The Blanks

• B. Match the following: 

• C.Tick (√) The Correct Option

• D.Answer The Following Questions in Brief 

• E.Answer The Following Questions
• Value Based Question
• Something To Do

SOMETHING TO KNOW

A. Fill in the blanks :

1. Endocrine glands release hormones

 into the blood stream.

2. larynx is also known as the voice box.

3. Acne and pimples are common in adolescence due to increased production of oil by the sebaceous glands.

4. Deficiency of vitamin D reduces the absorption of calcium by the body.

5. Thyroxine hormone is essential for metamorphosis to happen in a frog.

6. autosomes are chromosomes other than the sex chromosomes.

B. Match the following :

(1) Ovary - (e) Progesterone

(2) Pancreas - (d) Insulin

(3) Adrenals - (a) Adrenaline 

(4) Testes - (b) Testosterone

(5) Thyroid - (c) Thyroxine 

C. Tick (✓) the correct option : 

1. The period of life, marked by rapid changes leading towards sexual maturity, is known as - 

Ans) Puberty 

2. The onset of menstruation, in a human female, is known as - 

Ans) Menarche

3. The hormone, which controls the body's response to stress, is known as - 

Ans) Adrenaline

4. Out of the following, the one that does not produce hormones, is the - 

Ans) Sebaceous glands

5. The mineral, whose presence is essential for a tadpole to grow into a frog, is - 

Ans) lodine

Keywords :

• Class 8 Science Chapter-15 Reaching the Age of Adolescence

• Class 8 DAV Notes of Chapter- 15 Reaching the Age of Adolescence

• Class 8 exercise of Chapter-15 Reaching the Age of Adolescence

• Class 8 PDF of Chapter-15 Reaching the Age of Adolescence

• Class 8 Solutions Chapter-15 Reaching the Age of Adolescence

• Class 8 questions & answer of Chapter-15 Reaching the Age of Adolescence

• Class 8 Full CBSE| DAV Notes of Chapter-15 Reaching the Age of Adolescence

• Class 8 questions and answers Of Chapter-15 Reaching the Age of Adolescence

• Class 8 notes pdf download of Chapter-15 Reaching the Age of Adolescence 

• Class 8 worksheets pdf.

• Class 8 Science Chapter-15 Sound DAV Book 2021

• Class 8 Science DAV|CBSE All Solutions.

Thank You Students For being a part of our b2c2Academy  Family.😇

If You found this usefull then don't forget to share with your classmates and Friends.❤️