Ecosystems for Kids: A colorful diagram showing the food web and nutrient cycle in a pond ecosystem, highlighting producers, consumers, and decomposers.

Diagram illustrating a pond ecosystem for kids, showing the flow of energy from solar energy through photosynthesis, phytoplankton, zooplankton, macrophytes, and various animals including predators, herbivores, and omnivores, with nutrients cycling through the system and organic matter sedimenting at the bottom.