Plant Template for Flip Book - Version 1.0 Plant Theme for Flipping Book Publisher for Word are 100% free here! Plants are one of the two groups into which all living things have been traditionally divided; As we all know, the other group is animals. Plants are very important to our human beings. They can not only suck up carbon dioxide but also regulate rainfall and ecosystems. Moreover, it also puts out oxygen. So we need to protect our environment, especially trees. This theme is free, you can use it to your flipping book whose topic is about environment.