Sci 02 ncert_gr6_need to take different varieties of foods
<ul><li>Learning Objectives: </li></ul><ul><li>To make them understand the need to eat different varieties of food </li></ul><ul><li>Learning Outcome: </li></ul><ul><li>Pupil lists out the sources for various food items based on the nutrients. </li></ul><ul><li>Pupil names the vitamins and minerals present in food items on seeing them </li></ul>
Vitamin - E E Peas Geminating Wheat Green Vegetables
VitK- spinach, cabbage, cauliflower and other green vegetables. K Spinach Cabbage Green Vegetables Cauliflower
These vitamins are required in small amounts to carry out various metabolic activities of our body. Catabolism Anabolism Energy Vitamins Waste Products To synthesize protein and other chemicals Cell
They protect our body against diseases, and helps in keeping our eyes, bones, teeth and gums healthy.
Iron Iron Green Vegetables Unpolished Rice Peas
Phosphorus Beans Green Leafy Vegetables Phosphorus
Calcium Milk and Dairy Products Green Vegetables Calcium Eggs
Minerals are essential for proper growth of our body and to maintain good health. Minerals
Water helps in absorbing the nutrients in our body and also to carry metabolic function properly.
Roughage does not provide any nutrient to the body but helps in retaining water and adds bulk to our food. Prevents from constipation.
1 g 1 g Carbohydrate Fat 1Gram of carbohydrates and 1 gram of fat are taken. Which is the cheapest source of energy ?
1Gram of carbohydrates yields 17kJ of energy where as 1gram of fats on oxidation yields 37kJ of energy. So carbohydrates are known as cheapest source of energy where as fats are known as richest source of energy. 1 g 1 g 17 kJ of Energy 37 kJ of Energy Carbohydrate Fat
<ul><li>Our skin synthesizes vitamin D with the help of sunlight as our skin has a compound known as 7-D hydro cholesterol. </li></ul><ul><li>Bacteria found in human intestine synthesize vitamin K that helps in clotting of blood. </li></ul><ul><li>Vitamin A, D, E, K is called as Fat soluble vitamins as they are soluble in the presence of fats. </li></ul><ul><li>Vitamin B and C are called as water soluble vitamins are they are soluble in water. </li></ul><ul><li>Excess of vitamin A results in peeling of skin . </li></ul>
Suggested Activity Students are given different food items and are asked to group them under vitamins and minerals. Food items- carrot, egg, cod liver oil, butter, milk, tomato, cabbage, cauliflower, amla, gooseberry, grapes, orange, mango, pineapple, meat, yeast, spinach leaves, coriander leaves, black gram, dates, lentil, peas, fruit, beet root, turnip, dairy products, wheat, beans, liver, salt. Activity
Inquisitive Questions 1. Why carbohydrates are called as cheapest source of energy? 2. Why fats are called as richest source of energy? 3. What is the most important nutrient among carbohydrates? 4. Why sports person and patients are given glucose drips? 5. When you feel your energy level is too low which fruit juice if you drink will pep up your energy? Why? 6. Why is it recommended to eat some fruits and vegetables with their peel? 7. Steaming vegetables is better than boiling vegetables Why? 8. Our diet should include an adequate quantity of vegetables. Why? 9. What acts as roughage for our body? 10. Repeated washing of rice and pulses are not advisable. Why?
1. Get fresh vegetables like spinach, cabbage and weigh them. Next dry them under the sun and weigh them. Note the difference of weight and find out what is the reason for such difference. 2. Determine the water content of fruits like tomato, musambi, lemon by weighing it before and after squeezing the juice from it.
Even if one nutrient is not taken in our diet, it results in deficiency diseases. But if we develop at least one good quality, our efficiency increases. Body Any One Nutrient Deficiency Man Any One Good Quality + _ Efficiency = =
Too much of cooking and washing removes the essential nutrients from food, similarly too much of talking reduces our thinking ability and memory.
Assessment Boil the milk, and cover it with a lid. After sometime, open the lid. What is behind the lid? What could be the reason? Click here for clue
Assessment Boil the milk, and cover it with a lid. After sometime, open the lid. What is behind the lid? What could be the reason? Clue Tiny water droplets