Science project idea on which foods are good source of fuel.
Which Foods are Good for Fuel- Science Project Idea
What foods are good for fuel, and what ones for growth and repair?Consideration of the kinds of food that are eaten under certain conditions may help us to solve this problem.People living in the Arctic regions must have food which will produce a great deal of heat.You all know that fat forms the greater part of their diet.What will be your conclusion, therefore, as to the value of fat in the food?Consider your own diet in regard to the use of fat.Do you eat a greater quantity in winter or in summer?The hard work of lumbermen in the northern woods is done chiefly in winter.They need food which will give them heat, and the power to do hard work.They eat much fat meat, as you would expect, but they also eat a great amount of molasses, large quantities of potatoes, and other starchy foods.This is an indication of the value of foods which contain starch and sugar.
These observations concerning the use of fats, starch, and sugar are in harmony with experiments which have been made as to the value of different food substances.Starches and sugar, which together are called carbohydrates, and fats because they are common to so many foods, are called food principles or nutrients.
We have already decided that foods, in addition to furnishing energy, are also necessary for growth and repair.For this purpose it has been found that there must be present a food principle or nutrient called protein, and certain mineral substances.These contain elements which are not present in fats and carbohydrates but which are necessary for the building of different parts of the body.
For example, living matter contains nitrogen; and as protein is the only nutrient which contains nitrogen, it is necessary for growth and repair of living matter.Foods containing a large percentage of protein are lean meat, fish, eggs, milk, cheese, beans, and peas, and to a lesser extent cereals (oats, wheat, barley, and rye).
Mineral matters are not only necessary for the making of new living matter and for the formation of the bones of the body, but their presence is necessary for the action of nerves and muscles, and for the passing of liquids through the walls of the small blood vessels and through other membranes.Iron has a special duty in forming the coloring matter of the red blood corpuscles.Mineral materials are very widely distributed among foods.Most natural foods contain considerable mineral matter, so that usually the ordinary diet contains a sufficient amount.Milk, eggs, lean meat, leafy vegetables, fruits, and flour made from the whole grain are especially rich in mineral matter and very nutritious.
Recent experiments have shown that unless certain chemical substances (vitamins) which are found especially in green vegetables and milk are present, normal growth does not occur.Therefore, it is very important to include these in the diet.
Name ten foods that are good for supplying energy.Name five foods that are good for growth and repair.
Science Project Idea Pick an area in the world where its is either very cold or very hot and do some research on the people's diet in that area.Compare the diet that you have researched to the diet that you consume.Present diagrammatically the foods you eat with their associated energies with the diet that you researched.
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