Macronutrients
Macronutrients are the proteins, fats, and carbs in food that give your body energy to grow and move.
A kitchen tray holds three bowls: one with bread cubes, one with nuts, and one with cooked eggs. Each bowl gives your body a different kind of fuel to run on. The bread cubes give quick bursts of energy. The nuts give slow, steady energy. The eggs help your body build and fix itself.
Explaining macronutrients by grade level
The food you eat has three main parts your body needs. Protein helps you grow strong. Fat gives you lasting energy. Carbs help you run and play.
Projects that explore macronutrients
Three chemical indicators each detect a different macronutrient in food samples. Iodine finds starch, Benedict's solution detects sugar, and Biuret reagent identifies protein. You test seven foods and chart which nutrients appear in plant versus animal sources.
Food irradiation kills bacteria in beef and extends shelf life, but does the process also break down the macronutrients inside? This experiment measures protein and fat content in irradiated and nonirradiated beef patties, using protein and nitrogen analysis alongside lipid titration to compare nutrient levels in treated and untreated meat.