This guide focuses on the fascinating world of plants. Through books and other print materials, and exploration of actual plants, children will identify plants as living things, examine the parts of plants, experiment with what plants need to live and grow, and appreciate the importance of plants to people and other living things. There are more than 350,000 different species of plants on Earth. Tiny green mosses, exotic Venus fly traps, and immense redwood trees are all classified as plants. Given this diversity, what characteristics do plants share? Most importantly, plants are living things. Plants need water, light, nutrients, and air to grow and survive. Like other living things, plants also are capable of movement. Plants will move toward a light source. A dramatic example is the sunflower.