A glass full of hot milk is poured on the table. It begins to cool gradually. Which of the following is correct? (a) The rate of cooling is constant till milk attains the temperature of the surrounding. (b) The temperature of milk faills off exponentially with time. ( c) While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the milk but the net flow of heat is from milk to the surrounding and that is why it cools. (d) All three phenomenon, conduction, convection and radiation are responsible for the loss of heat from milk to the surroundings.
Milk in mammary glands is stored in
Milk : Liquid :: Curd : ……
This is not indication of changing milk in to curd.
Read the following activites A)Oogenesis B)Ovulation C)Milk secretion D) Milk ejection
Hot milk in a thermos flask is an example for
The initial step in the digestion of milk in humans is carried out by
If we take bottles of equal volume and pour pure milk in one and milk mixed with water in the other,which one wil be heavier ?
Take three bowls and mark as A,B,C . Pour lukewarm milk in bowl. A hot milk in bowl B, cold milk in bowl C. Add one tea spoon of curd or butter milk in three bowls and stir them slightly. Cover the bowls with lids. Keep the bowls undisturbed for five to six hours. In which bowl milk turned into curd? Give your reasons.
VGS PUBLICATION-BRILLIANT-MODEL PAPER 10 -SECTION-C
