Most of Earth is covered in water. Water falls from the sky as rain or snow. All living things need water to survive. Discover why water is an important part of nature!

Keli Sipperley is an author, editor, and mom of four in sunny Tampa, Florida. Before making the jump to writing for young people full time, she worked as a journalist covering everything from high school sports to ghost hunts. She's written dozens of fiction and nonfiction books for kids. When she's not researching or writing, you can find her watching her kids play sports or daydreaming at the beach.