WORDS 30-32FOOD CHAINFOOD WEB

FOOD PYRAMID

30. Food Chain- A series of events in

which one organism eats another to obtain energy

In this food chain a flower is eaten by a caterpillar which is eaten by a frog which is eaten by a snake which is eaten by an owl

Flower caterpillar frog snake owl

Tell me some things that you notice about this food chain

ALL food chains start with a producer

What do you think would happen to us if there were no plants in the world?

We would starve to death. All food chains begin with a producer so even the carnivores ultimately rely on plants

Hold it just one second! Actually, all food

chains start with the sun because that is where plants get their energy from

Your turn! Make a food chain that

has at least 4 members Don’t forget that all

food chains start with a producer

Label the members of your food chain as:

-producer -1st order consumer - 2nd order

consumer - 3rd order consumer

What organism is at the top of your food chain?

The organisms at the top are usually your big predators.

Such as, a bear, a shark , an eagle

Guess who else is at the top

That’s right, humans are!

There aren’t too many things that eat a human

Strange but true…. Sometimes a food

chain only consists of 2 organisms

Like a human eating an apple

31. Food Web- A series of

overlapping food chains

Looks confusing! Start with a plant and follow the

arrows

32. Food Pyramid- A diagram that shows

the amount of energy that moves from one feeding level to another in a food web

Energy is lost at each level of the food pyramid

The food pyramid is often called the energy pyramid