PPT: Food Chains and Food Webs | Science Class 5 ICSE PDF Download

 Page 1


Food Chains and 
Food Webs
Page 2


Food Chains and 
Food Webs
Food Chains, Food Webs and 
Energy Transfers
Food Chains
Linear pathways showing how 
energy moves from producers to 
consumers in a single sequence.
Food Webs
Interconnected food chains 
showing multiple feeding 
relationships in an ecosystem.
Energy Transfer
The process by which energy moves from one organism to another when 
it is consumed.
These ecological concepts help us understand how organisms interact with 
each other and their environment. They illustrate the flow of energy through 
ecosystems and demonstrate the interdependence of different species within 
a habitat.
Page 3


Food Chains and 
Food Webs
Food Chains, Food Webs and 
Energy Transfers
Food Chains
Linear pathways showing how 
energy moves from producers to 
consumers in a single sequence.
Food Webs
Interconnected food chains 
showing multiple feeding 
relationships in an ecosystem.
Energy Transfer
The process by which energy moves from one organism to another when 
it is consumed.
These ecological concepts help us understand how organisms interact with 
each other and their environment. They illustrate the flow of energy through 
ecosystems and demonstrate the interdependence of different species within 
a habitat.
Food Chains
Energy Source
Sun provides energy
Producer
Plants create food
Primary Consumer
Herbivores eat plants
Secondary Consumer
Carnivores eat herbivores
A food chain is a diagram that shows the order in which animals eat plants and other 
animals to get energy. The arrows show the direction in which the food moves, indicating 
energy transfer. Food chains always contain a producer and at least one consumer, with 
energy always transferred from the producer to the consumer.
Page 4


Food Chains and 
Food Webs
Food Chains, Food Webs and 
Energy Transfers
Food Chains
Linear pathways showing how 
energy moves from producers to 
consumers in a single sequence.
Food Webs
Interconnected food chains 
showing multiple feeding 
relationships in an ecosystem.
Energy Transfer
The process by which energy moves from one organism to another when 
it is consumed.
These ecological concepts help us understand how organisms interact with 
each other and their environment. They illustrate the flow of energy through 
ecosystems and demonstrate the interdependence of different species within 
a habitat.
Food Chains
Energy Source
Sun provides energy
Producer
Plants create food
Primary Consumer
Herbivores eat plants
Secondary Consumer
Carnivores eat herbivores
A food chain is a diagram that shows the order in which animals eat plants and other 
animals to get energy. The arrows show the direction in which the food moves, indicating 
energy transfer. Food chains always contain a producer and at least one consumer, with 
energy always transferred from the producer to the consumer.
Food Webs
Most living things don't eat just one food. For example, a frog will eat worms, flies, beetles and other insects. Some 
large frogs will even eat small snakes, mice, baby turtles and other smaller frogs. This means that most animals are 
part of more than one food chain.
These different food chains link together to form a food web, which is a more realistic way to show energy transfer 
between living things in a habitat.
Page 5


Food Chains and 
Food Webs
Food Chains, Food Webs and 
Energy Transfers
Food Chains
Linear pathways showing how 
energy moves from producers to 
consumers in a single sequence.
Food Webs
Interconnected food chains 
showing multiple feeding 
relationships in an ecosystem.
Energy Transfer
The process by which energy moves from one organism to another when 
it is consumed.
These ecological concepts help us understand how organisms interact with 
each other and their environment. They illustrate the flow of energy through 
ecosystems and demonstrate the interdependence of different species within 
a habitat.
Food Chains
Energy Source
Sun provides energy
Producer
Plants create food
Primary Consumer
Herbivores eat plants
Secondary Consumer
Carnivores eat herbivores
A food chain is a diagram that shows the order in which animals eat plants and other 
animals to get energy. The arrows show the direction in which the food moves, indicating 
energy transfer. Food chains always contain a producer and at least one consumer, with 
energy always transferred from the producer to the consumer.
Food Webs
Most living things don't eat just one food. For example, a frog will eat worms, flies, beetles and other insects. Some 
large frogs will even eat small snakes, mice, baby turtles and other smaller frogs. This means that most animals are 
part of more than one food chain.
These different food chains link together to form a food web, which is a more realistic way to show energy transfer 
between living things in a habitat.
Energy Transfers in Food Chains and Food 
Webs
Producer Energy
Producers capture energy from the 
Sun through photosynthesis, 
converting it into food energy 
stored in their tissues.
Herbivore Energy
Herbivores consume plants and 
extract the stored energy, using 
some for life processes and storing 
the rest.
Carnivore Energy
Carnivores obtain energy by 
consuming herbivores or other 
carnivores, accessing only the 
energy stored in their prey's body.
Energy is transferred from one living thing to another in a food chain. Producers get their energy from the Sun and 
use it to make food. This food becomes the energy source for herbivores, which in turn become the energy source 
for carnivores.