Every time animals (including humans) run, jump, stomp, or even grow, they use energy. All living things must have energy to stay alive. Where do living things get their energy?
Some living things create the energy they use. They are called producers. Plants are producers. They make their own food using sunlight, air, minerals from soil, and water.
Some living things cannot make their own food. They have to get their energy by eating plants or animals or plants and animals. They are consumers. Humans are consumers.