Category Science

Science lessons for kids. Elementary level classes

Examples of grass plants

10 Examples of Grass Plants

The grasses, also known as Poaceae, are a family of plants that includes a wide variety of species, most of which are herbaceous. They are characterized by their jointed stems, narrow leaves, and unique flowers organized in spikelets.
How does Sound travels for kids

How Does Sound Travel?

We live surrounded by sounds and sources of sound. The brain and the nervous system are responsible for interpreting sounds. Moreover, we ourselves produce sounds both naturally and artificially. Let's learn about the sources that give rise to sounds.
The Reproductive system for teens: Male and female

The Female and Male Reproductive System [for teens]

The human reproductive system is an organ system by which humans reproduce by giving birth to living offspring. In human reproduction, two types of sex cells, or gametes, are involved. The male gamete or sperm and the female gamete, the ovum. When sperm fertilizes an egg, this fertilized egg is called a zygote. After a long process it becomes an embryo and later a fetus.