Did you hear that growling noise? What was it? All of us have been in a quiet room and heard someone’s stomach growl. Or perhaps it was our own stomach that was growling. What makes our stomachs growl, and what does it mean? When we hear our stomachs make that noise, we know that it […]
Our skeleton is like a skyscraper Imagine a giant skyscraper reaching up into the sky. Up at the very top there are hundreds of workers, busy doing their jobs. No matter what the weather is like outside, these workers feel safe, because they know that the building was built very strong. Even on windy days, […]
A popular and traditional Halloween costume is that of a skeleton. Could a skeleton really walk by itself? What do you think? In the bone section of KidsBiology.com we learn that skeletons have the important job of providing our bodies with strength and form. The task of moving our bodies from one place to another […]
Do you know anyone who has red hair? How about brown, black, or blonde hair? What other colors can you think of? There are literally hundreds of different shades of hair color that a person can have. Color is not the only characteristic of hair that helps determine how someone looks. How thick is your […]
A doctor does not work alone. He or she works with other doctors, nurses and medical staff to make people healthy. A builder does not work alone. There are other builders who help do the same job. Likewise, most cells do not work alone. They work with other similar cells to form what is called […]
What do you want to be when you grow up? There are many important jobs that grownups do to keep our world running smoothly. Whether doctors, teachers, builders, engineers, farmers, etc, everyone learns a specific skill which they can then use to help everyone else. In singular-celled lifeforms, one cell has the ability to […]
Who’s cells are bigger, a newborn infant’s or that baby’s parents’? You might think that the parents have larger cells, because their bodies are bigger. But the truth is, that both the infant and its parents have cells that are pretty much the same size. However, the parents have a lot more cells. As […]
Today scientists have developed what we call the Cell Theory. This theory states the following: All living things are made of cells. Cells are the basic units of structure and function in living things. Living cells come only from other living cells. Fasten your seatbelts. You are about to see a world that is all around […]
The Discovery of Cells You are very fortunate to have been born when you were. Throughout most of human history, scientists knew very little about life and how it works. It was not until 1665 that a scientist by the name of Robert Hooke first discovered the existence of cells. While using the newly invented […]
You are a member of a very large and complex world. Together with other members of your family, you work to do jobs, like clean your home, set the table, make dinner, and many other important chores. Your family in turn works with other families to do important work. These cooperative efforts might include a […]
