The job of your respiratory system is very simple: To bring oxygen into your body, and remove the carbon dioxide from your body. Your body needs oxygen to survive. Oxygen is used by your cells as it performs the functions of life. As your body uses oxygen, your cells produce another gas known as carbon […]
Do you, or someone you know live in a large city? A city is a community of people who work together to support each other, and make life possible. Each person has a different job. Some are builders, others work in markets, while others clean up. Every job is important. Suppose you work in an […]
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 […]
The great white polar bear slowly glides across the snow covered ground in search of something to eat. In the distance, a white arctic hare is also looking for a meal. An arctic fox is on the prowl. These animals thrive in an environment which is very cold and unfriendly to most lifeforms. What would […]
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 […]
Biologist today have classified and divided all living things into six groups they call Kingdoms. These kingdoms are based on how living things are the same and how they are different. It is important that you understand that biologists are still learning about our world, and are making new discoveries every single day. As our […]
Scientists believe that there are over 10 million different kinds of lifeforms, or species, on Earth. Imagine trying to study and understand the lives, patterns, behaviors and evolution of so many different kinds of organisms. In order to make their job easier, scientists classify living things into groups based on how they are the same […]
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 […]
