Balance of nature is like when you want to keep a house tidy. To keep the house tidy, you need to make sure everything stays in balance. In nature, we need to make sure that plants, animals and other living things are in balance. That means that no one group of living things is too big and takes over. We also need to make sure that all living things in nature are healthy and have enough food, water and space. Humans can help maintain balance of nature by taking care of the environment, like planting trees and not littering.