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How many stages of human growth are are? Name them.
5 (Infancy, childhood, adolescence, adulthood, old age)
What do we call a baby younger than 28-days old?
newborn
why cannot a newoborn see well?
because their eyes haven't fully developed
At what age does childhood start and at waht age does it end?
3-11
At what age does adolescence start and at what age does it end?
12-18
What do we call the period of time when a person grows and develops quickly and become sexually mature?
Puberty
What physical changes does a male undergo when he becomes an adolescent?
they become more masculine, their shoulder widens, they grow facial hair, underarm and pubic hair. Their voices become deeper, and private parts grow larger.
What physical changes does a female undergo when he becomes an adolescent?
they develop their breasts and their hips widen. they grow underarm hair and pubic hair. They also have monthly periods.
What causes puberty?
hormones
At what age does adulthood start and at what age does it end?
19-65
what happens when people reach their adulthood?
they reproduce and start families
What happens with people's body system when they reach old age?
becomes weeker
what happens to old people physically?
they have health problems and fall ill easily. their eyesight starts to weaken. some may need help to move around.
what do elderly people need to do to keep fit and healthy?
exercise more and have a balanced diet
what does a baby need to do to move from one place to another?
crawl
