Chapter-Chapter 6. Adolescence–A Stage of Growth and Change Science Curiosity class 7 in english Medium CBSE Notes

Chapter 6: Adolescence – A Stage of Growth and Change

Definitions:

Adolescence: Adolescence is the stage of life between childhood and adulthood when rapid physical and mental changes occur.

Puberty: Puberty is the stage during adolescence when the body becomes capable of reproduction.

Hormone: Hormones are chemical substances produced by glands that control various body functions.

Endocrine Glands: Endocrine glands are glands that secrete hormones directly into the bloodstream.

Growth Hormone: Growth hormone is a hormone responsible for increase in height and overall body growth.

Testosterone: Testosterone is a male hormone responsible for development of male characteristics.

Estrogen: Estrogen is a female hormone responsible for development of female characteristics.

Menstruation: Menstruation is the monthly cycle in females in which the lining of the uterus is shed.

Balanced Diet: A balanced diet is a diet that contains all essential nutrients in proper amounts.

Personal Hygiene: Personal hygiene refers to keeping the body clean and maintaining good health habits.

Quick Revision Points:

• Adolescence is a stage of rapid growth and development.
• Puberty marks the beginning of reproductive maturity.
• Hormones control physical and emotional changes.
• Boys and girls develop different characteristics.
• Emotional changes are normal during adolescence.
• Menstruation is a natural process in females.
• Balanced diet is important for proper growth.
• Personal hygiene helps prevent infections.
• Regular exercise and sleep are important.
• Changes during adolescence are natural and normal.

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