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Food Chains

This presentation is an introduction to the idea of food chains, types of producers and consumers, carnivores, herbivores and omnivores as a science lesson for my 3rd grade class.

Alison Tuma

on 19 April 2010

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Transcript of Food Chains

Food Chains What is a food chain?
A food chain shows how each living thing gets its energy through food. Some animals eat plants and some animals eat other animals to gain energy.
Types of Consumers:
Tertiary Example of a food chain: Primary Consumers:
Animals that ONLY eat plants
Example - Grasshopper Animals that only eat plants are called...
Herbivores! Secondary Consumers:
Animals that eat the animals that only eat plants
Example - Frog Animals that only eat other animals are called...
Carnivores! Tertiary Consumers:
Animals that eat other carnivores
Example - Hawk Animals that eat BOTH other animals and plants are called...
A food chain is made up of
producers and consumers. Producers:
Plants - they collect energy from the sun to produce food (sugar) from carbon dioxide and water. The further along in a food chain, the less food (energy) is available.
This is why food chains tend to be only 4 or 5 links. Most humans are tertiary consumers because we eat other carnivores.
We are at the top of the food chain!
Full transcript