(i) Give reasons for the following: (a) The bottom of cooking utensils is often kept black. (b) We use plastic or wooden handles for holding cooking utensils.
Answers
Answer:
The bottoms of the cooking utensils are kept black because black colors absorb heat faster than any other color. For cooking, we need that the supply of heat is fast so that the food cooks quickly. This is why the bottoms of the cooking utensils are kept black in color.
Answer:
Bottom part of the cooking utensil is blackened so that maximum alount of heat is aborbed by the utensil, where as the upper part is kept shining so that minimum amount of heat is lost from the cooking utensil.
Handles of cooking utensils are made of wood because wood is insulator of heat and so does not get heated while cooking. If they will be made of iron then it will get heated and we will not be able to hold them. Plastic is used to make handles of cooking utensils because it is also insulator of heat.