Exercise - NCTB

102 Home Science
• The ingredients like oil, spices, onion etc. are used in cooking to make foods
attractive developing color, smell, taste. The corn and carbohydrate of
vegetables is pierce in boiled water. Then it is changed into dextrin maltase
and makes it sweet. The taste of foods is developed through fry, baking and
caramel etc .
• The attraction of eatable items depends on mainly texture. Texture indicates
the physical state of cooking foods. For instance, cake, pudding etc. When
foods are heated for cooking the germs in foods are destroyed. Thus foods
are made free from germs and save our body from toxic and dangerous
elements of foods.
• The rotten foods are heated through cooking. The germs of most foods are
destroyed at 45° -60°. Thus the cooking system helps to preserve foods
indirectly. We should remember that if normal color smell of foods are
preserved during cooking the food value is wasted less.
• Different eatable items are prepared by the same foods through cooking.
Thus it creates variety in eatable items.
• Different cooking systems have been invented with the development of
technology. The cooking system has to be followed depending on how the
foods have to be taken. For this reason the primitive men felt the necessity of
cooking and today man cook foods in different ways for the same reason.
The necessity of cooking can not be denied. But we should be careful so that the food
value is not wasted through cooking.
Task-1Describe the necessity of cooking?
Lesson 3 – Carefulness during cooking
Housewives or cook have to work with fire. Sharp things and different metallic things
in the kitchen. Kitchens of our country are not spacious. Any accident may cause
during cooking for congested area, warm atmosphere of kitchen and carelessness of
the cook. The accidents that happen in the kitchen are burning, cutting, slipping etc.
Burning – If flame from cooker come into contact with combustible things directly,
it creates fire. Body, hands, scarf, ribbon may catch fire unconsciously. If the oil
splitted from the pan and come to our body, we get burnt.