This document provides information about food chains. It begins by defining a food chain as a sequence of organisms through which energy flows as each organism obtains energy from the one below it in the chain. Producers, such as plants, are at the bottom of the food chain as they can produce their own food. Herbivores, as primary consumers, eat the producers. Carnivores eat herbivores or other carnivores. Omnivores both eat plants and other animals. Decomposers, like fungi and bacteria, break down waste and dead organisms, recycling nutrients in the ecosystem. The document includes examples of food chains and defines the roles of producers, consumers, and decomposers. It also

1. Topic: Food
Chain
Chapter 1: Habitat

2. Let's recall
what we
studied in
last lesson
 Can someone tell some features of vertebrates and
invertebrates
 Can you name 5 groups of vertebrates
 Well done
 Can you recall what we discussed about 5 groups of
vertebrates.
 Please write your answers in chat box.

3. Let’s test your knowledge–
Write answers in chat box
 What is the main source of energy for the living beings?
 How do plants prepare their own food?
 Differentiate between herbivore, carnivore & omnivore.
 What are the animals which feed on plants called?
 What are the animals which feed on other animals called?

4. Let see
what's a
food chain
Flow of energy in an ecosystem is one way
process. The sequence of organism through
which the energy flows, is known as food
chain.
In a food chain each organism obtains
energy from the one at the level below.
Food chain is a series of organisms that eat one
another so that energy and nutrients flow from one
to the next. For example, if you had a Chicken
burger for lunch, you might be part of a food chain
that looks like this:
grass → Chicken → human.

5. What's In a
food chain
Producers
Consumers
Decomposers

6. Video watchhttps://www.youtube.com/watch?v=YuO4WB4SwCg

7. Producers- Base of
food chain
 At the base of the food chain lie
the primary producers. The primary
producers are most often photosynthetic
organisms such as plants, algae, or
bacteria.
 Producers make their own food
 Green plants use energy from the sun to
make food
 Producers are on the bottom of the food
chain
This Photo by Unknown Author is licensed under CC BY-SA

8. Consumers  Consumers hunt, gather, and store food because they cannot
make their own.
 Animals are consumers because they eat plants and other
animals to get energy
 The first consumer (primary consumers) in food chain are
Herbivores
 The secondary consumer -carnivore
 Tertiary consumers - Omnivore

9. Herbivores – Primary
consumers
 Herbivores Animals who eat
plants such as: –
 grasshoppers –
 rabbits –
 squirrels –
 deer –
 pandas

10. Carnivores
 Animals who only eat other
animals such as:
 –tigers
 –lions
 –hawks
 –wolves
 –cougars

11. Omnivores
 Animals who eat both plants
and animals such as: –humans
 –bears

12. Decomposers
 Microorganisms that are
able to break down large
molecules into smaller
parts
 Decomposers return the
nutrients that are in a living
thing to the soil
 Fungi and bacteria play an
important role in nature.
They break down the
unused dead material and
turn them into nutrients in
the soil, which plants use to
grow. They are an
important part of the food
chain.

13. Let's look at
a food chain
 Every living thing needs energy in order to live. Every time
animals do something (run, jump) they use energy to do so.
Animals get energy from the food they eat, and all living things
get energy from food. Plants use sunlight, water and nutrients
to get energy. Energy is necessary for living beings to grow.
 A food chain shows how each living thing gets food, and how
nutrients and energy are passed from creature to creature.
Food chains begin with plant-life, and end with animal-life.
Some animals eat plants, some animals eat other animals.

14. There is actually even more to this chain. After a hawk dies, fungi (like mushrooms) and
other decomposers break down the dead hawk, and turn the remains of the hawk into
nutrients, which are released into the soil. The nutrients (plus sun and water) then cause
the grass to grow.
It's a full circle of life and energy!!

15. Some food chains

16. Task to do
Draw Draw a simple food chain
Identify and label
Identify and label producers, consumers,
herbivore , omnivore and carnivore in
your food chain
Color
Color your food
chain

17. Next class
Recap of food Food web –