Reaching the Age of Adolescence Class 8 Worksheet Science Chapter 7

Multiple-Choice Questions (MCQs)

Q1: Adolescence typically begins around the age of:
A. 5 years
B. 8 years
C. 11 years
D. 25 years

Q2: Which gland is often referred to as the “master gland” because it controls the release of many hormones?
A. Thyroid gland
B. Pituitary gland
C. Pancreas
D. Adrenal gland

Q3: The prominent protrusion in a boy’s neck that develops during puberty is commonly called:
A. Voice box
B. Adam’s apple
C. Vocal cord
D. Thyroxine lump

Q4: In females, the first menstrual flow at the onset of puberty is known as: 
A. Menopause
B. Foetus
C. Metamorphosis
D. Menarche

Q5: Secondary sexual characteristics in males and females are largely regulated by:
A. Digestive enzymes
B. Hormones
C. Blood vessels
D. Vitamins

Fill-in-the-Blanks

Q1: ____________is the phase of development that marks the transition from childhood to adulthood. 

Q2: The increase in __________ secretion during puberty can lead to acne and pimples.

Q3: During puberty, the __________ in males begin to produce the hormone testosterone.

Q4: The thickened lining of the uterus, along with the unfertilized egg, is shed from the body during __________.

Q5: For healthy growth during adolescence, a __________ diet that includes proteins, carbohydrates, fats, vitamins, and minerals is crucial.

True/False Statements

Q1: Adolescence involves not only physical changes but also emotional and intellectual development.

Q2: Girls typically begin adolescence and puberty later than boys.

Q3: Thyroxine, produced by the thyroid gland, is necessary for the metamorphosis of tadpoles into frogs.

Q4: The pituitary gland directly secretes estrogen and testosterone.

Very Short Answer Questions

Q1: Which gland secretes insulin hormone? 

Q2: What element is needed for thyroxine production? 

Q3: Name the endocrine gland attached to the brain. 

Q4: What is a naturally balanced food for infants? 

Q5: Why is an iron mineral important for our body? Write some iron-rich foods. 

Q6: Why is exercise important during adolescence? 

Q7: What is the function of the adrenalin hormone in the body? 

Q8: What is the most conspicuous change during puberty? 

Q9:  Define adolescence. 

Q10: Why early marriage and motherhood is harmful to girls? 

Q11: Why do young people get acne? 

Q12: What is the effect of a larger voice box on grown-up boys? 

Q13: What is menstruation? Explain.

Q14: How does the height of boys and girls change during puberty? 

Q15: What are sex hormones? Why are they named so? State their function.

You can find Worksheets Solutions here: Worksheet Solutions: Reaching the Age of Adolescence