Tuesday, 1 November 2011

Science Year 5 - Unit 3 Food Chain and Food Web

There are frogs, butterflies, snakes, caterpillars and birds living in this habitat. There are various types of plants too. Some animals eat plants or other animals for food, What about plants?

Animals can be classified into three categories according to the food they eat.
  1. Animals eat plants are herbivores.
  2. Animals eat the other animals are carnivores.
  3. Animals eat plants and the other animals are omnivores.
Plants use the energy from the Sun to make their own food. They are called producers. Plants provide energy to herbivores, carnivores and omnivores, this relationship is called a food chain. The herbivores, carnivores and omnivores are called consumers because they get their food by eating other animals or plants.

(P = producer, H = herbivore, C1 = carnivore order-1, C2 = carnivore order-2)

The relationship between organisms in food chains looks very simple, but in reality it is more complex. When two or more food chains linked together, this relationship is called a food web.

Science Exercise 1 for Unit 3

Science Exercise 2 for Unit 3

Science Exercise 3 for Unit 3

The Grassland Ecosystem and the food Chain

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