A food chain tells us what is eaten by what in an ecosystem.
What is an ecosystem? An ecosystem is all the animals and the plants in a habitat, together with their environment. An ecosystem provides everything that the animals and plants that live there need. A rock pool is an ecosystem, and so is a forest or a lake.
What is happening in this food chain? The insect is eaten by the frog.
Some animals can be predators and prey. Can you name any? (Clue: The first slide showed one.)
Energy flow Each animal in the food chain eats another animal or a plant in order to gain energy. The energy flow in the ecosystem keeps all of the animals alive.
What people do Sometimes, humans cause problems for the plants and animals in an ecosystem. Oil spills pollute the sea and beaches. Forests are cut down to make way for roads, and so that land is available for cattle to graze.
What happens to the other animals and plants in a food chain if one or more members of the chain are removed?
Match the words and phrases. A food chain shows Most food chains start with Plants are Animals are Animals that hunt and eat others are called Animals that are caught and eaten are called producers consumers predators prey a green plant what is eaten by what