This free 4th grade science worksheet introduces food chains, producers, consumers, and decomposers with a reading passage and comprehension questions.
A food chain shows how energy moves from one living thing to another. Plants are called producers because they make their own food using sunlight. Animals that eat plants are called primary consumers. Animals that eat other animals are called secondary consumers. When plants and animals die, decomposers like fungi and bacteria break them down. This returns nutrients to the soil so plants can grow again. Every living thing in an ecosystem plays a role.
Food chains show how energy moves through an ecosystem. This worksheet introduces the roles of producers, consumers, and decomposers, helping 4th graders understand interdependence in nature.