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The table below shows the data on likely heights of boys and girls as they grow in age. Draw graphs showing height and age for both boys and girls on the same graph paper. What conclusions can be drawn from these graphs?
|
Age (Years) |
Height (cm) |
|
|
Boys |
Girls |
|
|
0 |
53 |
53 |
|
4 |
96 |
92 |
|
8 |
114 |
110 |
|
12 |
129 |
133 |
|
16 |
150 |
150 |
|
20 |
173 |
165 |
Answer
The graph shows the relation between age and height of both boys and girls.
We note that during 8-12 years, girls experience a sudden growth and have more height as compared to boys. This is because puberty occurs earlier in girls(10-12 years), so they grow rapidly during this phase.
During 12-16 years,boys experience sudden grown and their height becomes the same as girls.This is because puberty occurs later in boys (12-13 years) and they grow rapidly during puberty
And, in later years, growth in both boys and girls become stable
