SCIENCE – FORM TWOSCIENCE – FORM TWO
FOOD WEBs & FOOD CHAINsFOOD WEBs & FOOD CHAINs
Created by: Alison OngCreated by: Alis...
WHAT IS A FOOD CHAIN ?WHAT IS A FOOD CHAIN ?
 A shows how each livingA shows how each living
thing gets its food. Some animals eatthing gets its food. Some animals ea...
EXAMPLE OF A FOOD CHAINEXAMPLE OF A FOOD CHAIN
Food WebFood Web
 AA food webfood web is a model that shows all the possibleis a model that shows all the possible
feedin...
What are the differencesWhat are the differences
between food webs andbetween food webs and
food chains?food chains?
A food web is actually several food
chains joined together.
How many food chains can you
make from this food web?
WHAT IS IN A FOOD CHAINWHAT IS IN A FOOD CHAIN
??
PRODUCERSPRODUCERS
CONSUMERSCONSUMERS
DECOMPOSERSDECOMPOSERS
ProducersProducers
 Plants get their energy from the sun.Plants get their energy from the sun.
They areThey are producers...
CONSUMERSCONSUMERS
Consumers hunt, gather, andConsumers hunt, gather, and
store food because they cannotstore food because...
Three Types ofThree Types of
ConsumersConsumers
OmnivoresOmnivores
Herbivores
CarnivoresCarnivores
HerbivoresHerbivores
A herbivore is an animal that gets itsA herbivore is an animal that gets its
energy from eating plant...
CarnivoreCarnivore
A carnivore is an animal that gets foodA carnivore is an animal that gets food
from killing and eating ...
OmnivoreOmnivore
An omnivore is a kind of animal thatAn omnivore is a kind of animal that
either eats other animals or pla...
Medium-sized Omnivores
Small Omnivores
Decomposers andDecomposers and
scavengersscavengers
ScavengersScavengers
DecomposersDecomposers
Let’s Look at a FoodLet’s Look at a Food
ChainChain
A food chain is a simplifiedA food chain is a simplified
way to look at the energy thatway to look at the energy that
pass...
food webs & food chains
food webs & food chains
food webs & food chains
food webs & food chains
food webs & food chains
food webs & food chains
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food webs & food chains

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food webs & food chains

  1. 1. SCIENCE – FORM TWOSCIENCE – FORM TWO FOOD WEBs & FOOD CHAINsFOOD WEBs & FOOD CHAINs Created by: Alison OngCreated by: Alison Ong EVALUATIONEVALUATIONACTIVITIESACTIVITIESVIDEOVIDEOCONTENTSCONTENTS
  2. 2. WHAT IS A FOOD CHAIN ?WHAT IS A FOOD CHAIN ?
  3. 3.  A shows how each livingA shows how each living thing gets its food. Some animals eatthing gets its food. Some animals eat plants and some animals eat otherplants and some animals eat other animals.animals.
  4. 4. EXAMPLE OF A FOOD CHAINEXAMPLE OF A FOOD CHAIN
  5. 5. Food WebFood Web  AA food webfood web is a model that shows all the possibleis a model that shows all the possible feeding relationships between organisms living infeeding relationships between organisms living in an ecosystem.an ecosystem.
  6. 6. What are the differencesWhat are the differences between food webs andbetween food webs and food chains?food chains?
  7. 7. A food web is actually several food chains joined together.
  8. 8. How many food chains can you make from this food web?
  9. 9. WHAT IS IN A FOOD CHAINWHAT IS IN A FOOD CHAIN ?? PRODUCERSPRODUCERS CONSUMERSCONSUMERS DECOMPOSERSDECOMPOSERS
  10. 10. ProducersProducers  Plants get their energy from the sun.Plants get their energy from the sun. They areThey are producersproducers because theybecause they make their own food using energymake their own food using energy from the sun.from the sun.
  11. 11. CONSUMERSCONSUMERS Consumers hunt, gather, andConsumers hunt, gather, and store food because they cannotstore food because they cannot make their own.make their own.
  12. 12. Three Types ofThree Types of ConsumersConsumers OmnivoresOmnivores Herbivores CarnivoresCarnivores
  13. 13. HerbivoresHerbivores A herbivore is an animal that gets itsA herbivore is an animal that gets its energy from eating plants.energy from eating plants. Large Herbivores Medium-sized Herbivores Small Herbivores
  14. 14. CarnivoreCarnivore A carnivore is an animal that gets foodA carnivore is an animal that gets food from killing and eating other animals.from killing and eating other animals. Large Carnivores Medium Carnivores Small Carnivores
  15. 15. OmnivoreOmnivore An omnivore is a kind of animal thatAn omnivore is a kind of animal that either eats other animals or plants.either eats other animals or plants. Large Omnivores
  16. 16. Medium-sized Omnivores Small Omnivores
  17. 17. Decomposers andDecomposers and scavengersscavengers ScavengersScavengers DecomposersDecomposers
  18. 18. Let’s Look at a FoodLet’s Look at a Food ChainChain
  19. 19. A food chain is a simplifiedA food chain is a simplified way to look at the energy thatway to look at the energy that passes from producers topasses from producers to consumers.consumers.

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