Trophic Levels and Food Webs

The sustainability of an ecosystem depends on many factors and changes constantly. Young scholars consider these factors as they use a set of cards to create food webs. They review key scientific vocabulary such as predator, prey,...

What's in the water? Encourage your class to further explore this question and learn about pond ecosystems, food chains, and food webs as they complete this hands-on activity. They view the environment from a new perspective...

In the ecological game of who eats who, one small change can have a big impact! Individuals create food chains in an array of ecosystems, then determine what happens to organisms in the chain when one organism changes its feeding...

It's a jungle out there! Young biologists journey to Darien, Panama to examine the intricate relationships between the organisms that inhabit the jungle. Groups begin by demonstrating an understanding of energy flow in ecosystems, then...

Learn more about food chains, the food web, and the concepts relating to them. It focuses on consumers, producers, decomposers, energy transfer, and energy loss across trophic levels.

How come we don't eat worms, but we eat fish that eat worms? A video features the food chain and explains why a food web is a better explanation for biodiversity. It includes explanations of producers, autotrophs, consumers,...

Who eats who in the savannas of Africa? Explore trophic levels with part four of an eight-part series of lessons focused around Gorongosa National Park. After young explorers identify animals using trailcam images, they construct a food...

Investigate desert biomes by creating food chains and food webs. Groups first research feeding habits of organisms in the Sonoran Desert. This information helps pupils draw food chains and webs to determine relationship between organisms.

Food storage matters! Scholars learn how the amount of water in corn can affect its rate of spoilage. They create a control group, then test three corn samples stored in three different locations for water activity. As a result of the...

For this lesson, students learn about marine food webs and pyramids, and how energy flows through a marine ecosystem. They then research a marine organism and its role in a marine food web. The class pools their information to create a...