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Thanks for visiting! Right now you're on BIOLOGY4KIDS.COM. It's not just biology for kids, it's for everyone. If you are looking for basic biology help and information, stay on this site. We have information on cell structure, cell function, scientific studies, plants, vertebrates, invertebrates, and other life science topics. If you're not sure what to click, try our site map that lists all of the topics on the site. If you get lost in all of the information, use the search function at the top or bottom of each page.
OKAY! As we have for almost twenty years, let's start here...

What is biology? Well... Here's our best definition: Biology is the study of life and the changes that take place with and around all living things. The study of life extends far beyond Earth. Biology covers every planet and object in the Universe.

In the same way that everything on Earth is made of atoms, everything that is alive on Earth is made of cells. An entire living thing can be one cell or it can be billions. Most cells on Earth have similar pieces and parts. Let's get started and look inside cell structure. Go take a look!


That's it for the introduction. Now it’s up to you to click and have fun! BIOLOGY4KIDS is one of many free science sites developed by our team. You may have also used Chem4Kids, Geography4Kids, Cosmos4Kids, or Physics4Kids. We even have a math site called

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