Food-Where does it Come From - Revision Notes

 CBSE Class–VI Subject Science

Revision Notes
CHAPTER – 1
Food: Where Does it Come From?

  • Food: Nutritious substance that people or animals eat or drink, or that plants absorb. In order to maintain life and growth.
  • food is essential for both lants and animals. 

USES OF FOOD IN OUR BODY

  • For energy
  • for growth
  • for body functions
  • for wounds healing
  • for good health

PLANT SOURCE OF FOOD

(A) parts of the plants as a source of food

  1. plant roots used as food.Ex. Carrot,Turnip,Radish,Beetroot.
  2. Plant stems used as food : Ex. Potato, Coriander and sugarcane.
  3. plant leaves use as food : Ex. spinach, cabbage, onion.
  4. flowers from plant used as food : Ex. Rose, Cauliflower and Bauhinia(kachnar)
  5. Fruits on plant used as food : 
  • pulpy fruits: grapes, banana,apple
  • Nuts and dry fruits : almond, currant ( kismis )
  • Fruits used as vegetable : Brinjal,tomato,gourd,beans

   6. Seeds used as food : 

  • Cereals(grains)and seeds : addy(rice),maize(corn),wheat
  • pulses(dal) : Gram(chana),greengram(mung),pegeon pea.
  • seeds yoeld oil which is used as food : mustard(sarson),sesame(til),coconut oil.

(B) FOOD THAT COMES FROM ANIMALS

  1. MILK;
  2. EGGS
  3. MEAT FROM ANIMALS
  4. FISH,PRAWNS,CRABS
  5. HONEY

There is a lot of variation in the food eaten in different regions of India.

  • The main sources of our food are plants and animals.
  • Food sources from plants:- vegetables, pulses, spices, cereals, fruits, oils, etc.
  • Food sources from animals:- milk, egg, honey, meat, fish, etc.
  • Other sources of food are salt and water.
  • Animals which eat only plants are called herbivores. Example: cow, goat, sheep etc.
  • Animals which eat only animals are called carnivores. Example: tiger, lion, etc.
  • Animals which eat both plants as well as other animals are called omnivores. Example: bears, foxes, dogs, etc.
  • Vegetarian : eat only the food from plants.
  • Non-vegetarian : eat animal food like meat , fish, chicken and eggs.

Animals that live on dead and decayin food is called scavengers. Example: hyenas, vulture, etc.