🌿 Food Chain Builder
Drag organisms from the bank into the chain slots. Build a complete food chain and watch energy flow from producers to apex predators!
How Food Chains Work
Producers (plants) make their own energy from sunlight via photosynthesis. They are eaten by primary consumers (herbivores), which are eaten by secondary consumers, and so on. At each step, about 90% of energy is lost as heat — which is why there are fewer predators than prey!
Food Chain vs Food Web
A food chain shows one path of energy. A food web shows all the interconnected paths in an ecosystem — most organisms eat multiple things and are eaten by multiple predators.
About This Science Tool
This free interactive science tool is designed for elementary and middle school students. It uses visual animations, hands-on activities, and quizzes to help kids understand key science concepts. All content is aligned with Next Generation Science Standards (NGSS) and is completely free with no login or account required.
Interactive learning tools like this one help students engage with science in ways that textbooks alone cannot. By clicking, dragging, and experimenting, kids build deeper understanding and retain information better. Research shows that active learning leads to stronger academic outcomes compared to passive reading.
How to Use
Explore the interactive elements above, then test your knowledge with the built-in quiz. You can retry as many times as you like. Teachers can use this tool on interactive whiteboards or assign it for independent practice. Parents can use it for homeschooling or after-school enrichment.
Last reviewed: April 2026
Standards: Next Generation Science Standards (NGSS) · Sources: NASA