The Food Chain
Every living thing needs energy. A food chain shows how energy moves from one living thing to another when they are eaten.
Most food chains begin with a plant. A plant uses sunlight to make its own food, so it is called a producer. Grass is a producer.
An animal cannot make its own food. It is a consumer, because it eats other living things. A grasshopper eats grass. A frog eats the grasshopper. A snake eats the frog, and a hawk eats the snake. Animals that eat only plants are called herbivores. Animals that eat other animals are called carnivores.
What happens when a plant or an animal dies? Decomposers, such as mushrooms, worms, and tiny bacteria, break it down. They return nutrients to the soil, and new plants use the nutrients to grow.