Odia Medium Class 8 Science Chapter 7 Question Answer

BSE Odisha Class 8 Science Chapter 7: Reaching the Age of Adolescence (କୈଶୋର ଅବସ୍ଥା)

Mastering the concepts of Reaching the Age of Adolescence is crucial for understanding the biological and emotional changes during a student’s growing years. At Odisha Board Solutions, we provide simplified, stepwise answers for Class 8 Science Chapter 7, specifically updated for the 2026-27 academic session.

1. What is Adolescence and Puberty? (କୈଶୋର ଓ ଯୌବନାରମ୍ଭ)

Adolescence is the period of life when the body undergoes changes leading to reproductive maturity. It typically begins around age 11 and lasts until 18 or 19.

  • Puberty (ଯୌବନାରମ୍ଭ): The period during which the human body becomes capable of reproduction.

  • Physical Changes: These include a sudden increase in height, changes in body shape, voice change (Adam’s Apple), and increased activity of sweat and sebaceous glands.

2. The Role of Hormones (ହର୍ମୋନର ଭୂମିକା)

Hormones are chemical substances secreted by Endocrine Glands. They are responsible for the changes that occur during puberty.

  • Testosterone: The male hormone released by the testes.

  • Estrogen: The female hormone released by the ovaries.

  • Pituitary Gland: Known as the “Master Gland,” it controls the secretion of other hormones.

3. Reproductive Health (ପ୍ରଜନନ ସ୍ୱାସ୍ଥ୍ୟ)

Maintaining physical and mental health is vital during adolescence. This chapter emphasizes:

  • Nutritional Needs: The importance of a balanced diet (Iron, Calcium, and Proteins).

  • Personal Hygiene: Taking regular baths and maintaining cleanliness to avoid bacterial infections.

  • Physical Exercise: Walking and playing in the fresh air to keep the body fit.

  • Saying No to Drugs: Adolescence is a time of confusion; students must stay away from harmful substances.

4. Myths and Facts (ଭ୍ରାନ୍ତ ଧାରଣା ଓ ସତ୍ୟ)

In the BSE Odisha curriculum, it is important to address social myths. For example, the sex of a child is determined by the chromosomes of the father (XY), not the mother (XX).

5. Download Class 8 Science Chapter 7 PDF (Odia Medium)

We offer a FREE PDF Download of the Class 8 Science Chapter 7 Questions and Answers. This PDF is optimized for Odia medium students.

Revision Tip: Learn the functions of the Thyroxine, Insulin, and Adrenalin hormones, as they are frequently asked in FA3 and SA2 assessments.