Describe two common physical changes that are typically observed in boys and two common physical changes observed in girls during puberty.
During puberty, boys typically experience a deepening of the voice, often referred to as a 'cracked' voice, due to the enlargement of the voice box (larynx). Another common change is the growth of facial hair, such as a moustache and beard, along with hair on other parts of the body. Girls, on the other hand, commonly show breast development, which begins with the enlargement of mammary glands. Additionally, in girls, there is often a broadening of the hips, giving the body a more rounded appearance, which is another significant physical change during this developmental stage.
Explanation
Grading points: Two distinct physical changes for boys (e.g., voice change, facial hair) and two distinct physical changes for girls (e.g., breast development, hip broadening).