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Growing Up

In this worksheet, students will learn about how children change when they enter adolescence.

'Growing Up' worksheet

Key stage:  KS 3

Curriculum topic:   Biology: Structure and Function of Living Organisms

Curriculum subtopic:   Reproduction

Difficulty level:  

Worksheet Overview

Babies grow and at around 12 months they become toddlers. Toddlers become children at about 3 years. Children between the ages of 10 to 15 experience massive changes in their bodies. Fast growth takes place during this period. This period is called puberty and finishes by the age of 18. Usually girls go into puberty before boys.

 

Spots or acne

 

Sex hormones released by the ovaries and testes start off puberty. Sex hormones can cause acne (spots) and emotional changes, too. This includes boys and girls becoming more interested in each other. The period during which all the physical and emotional changes take place is called adolescence.

 

The changes that take place during adolescence in boys and girls are summarised in the table below:

 

Development of male characteristics Development of female characteristics
stronger body smell stronger body smell
voice deepens 'breaks'  
testes and penis get bigger menstruation
testes start making sperm ovaries start releasing eggs
pubic hair grows pubic hair grows
body becomes more muscular hips get wider
facial hair grows  
body hair grows underarm hair grows
broad shoulders breasts mature

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