


Height and weight Usually during the period from 8 to 13, major physical changes start to occur in a child’s body. The most obvious change is a rapid increase in height and weight. In girls, this…

Labor Day It’s Labor Day! Let’s have a picnic! Let’s go to a ball game! Or, let’s just take it easy! In the United States, Canada, and Puerto Rico, Labor Day is a national holiday. It is…

Boys and girls everywhere wonder about the things they see around them. And they wonder about themselves, too. They wonder how their bodies work. They wonder about their secret selves—their…
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