All About This Chemistry Book

This book is called the CK-12 Chemistry Workbook. It was made in the year 2010 by a group called CK-12 Foundation.

Who Made This Book?

CK-12 Foundation is a non-profit group. That means they don't try to make money. They just want to help.

Their big goal is to make school books cost less money. They want kids all over the world — in the U.S. and other countries too — to be able to afford good books for school.

How They Make Books

CK-12 uses a special way of making books. It's called "open-content." This means many people can help write and share the book on the internet. They call this kind of book a FlexBook.

CK-12 wants to make books that are really good. These books can be used as the main book for a class. They can also help each student learn in their own special way.

What's Copied and Shared

This book has a copyright from the year 2009. That means CK-12 Foundation made it and gets credit for it.

But here's something neat: this book uses a special license that lets other people share it too! It's called a "Creative Commons" license. This means people can copy and share the book, as long as they say CK-12 Foundation made it.

What's Inside This Book

This chemistry book has many chapters. Each chapter teaches about a different part of chemistry — the science of what things are made of and how they change.

Here are some of the things you can learn about in this book:

• How scientists study things (the scientific method)
• What matter is, and what energy is
• How to measure things in chemistry
• Tiny building blocks called atoms
• How atoms are put together
• The periodic table, which lists all the different elements
• How atoms join together to make new things
• Solids, liquids, and gases
• Acids and bases
• How fast chemical changes happen

Each chapter has lessons with worksheets. Worksheets are pages with questions and practice problems. They help students practice what they learned.