Several natural science websites such as ExploreLearning and SheppardSoftware feature interactive online tools and activities that demonstrate the mechanics of different food chains to kids. Educational video sites such as WatchKnowLearn also host several simple explanations of food chains and ecosystems in desert, jungle and marine habitats.
Food chains are linear relationships between producer, predatory, prey and decomposer animals within a larger food web, which is much more complex than a food chain. Many educational websites allow children to click on different animals to create their own interactive food chains based on their understanding of predator-prey relationships. If the child chooses the right species order, then the food chain operates correctly, but if they choose the wrong order, the cycle does not run properly.