Students will learn about the Law of Conservation of Mass by exploring environmental factors that can impact protein coagulation in milk (cheese-making process). By making qualitative and quantitative observations they will test three possible methods of making curds and whey.
Students will learn the anatomy of eggs and the concept of forming colloidal dispersions called foams as they learn the anatomy of an egg, create a foam by whisking egg whites, investigate the effect of whisking time on foam, and compare and contrast the effect of different substances on the stability of foam.
Students will identify the importance of a healthy diet, examine how to meet current Dietary Guidelines, and determine the potential energy (kilocalories) of a peanut through measurements obtained during teacher use of a bomb calorimeter. Students will make comparisons to the actual Nutrition Fact Label and identify possible sources of error.
Students will explore the fat content of commonly consumed foods, observe physical properties of lipids (margarine, butter, and vegetable oil) to distinguish between saturated and unsaturated fat, and observe the action of emulsifiers in heterogeneous and homogenous mixtures.
Students will understand the nutritional components of milk (carbohydrates) as they test three types of milk for the sugar glucose before and after adding the digestive enzyme lactase to determine which milk(s) contain the sugar lactose. They will also explore the nutritional composition and health benefits of consuming milk, research food sources of calcium, vitamin D, and phosphorus and devise ways to add bone-strengthening food to their diet.
Students will use common household measurement tools and scientific measurement tools and various methods of measurement to compare for accuracy. Students will also calculate percent error by comparing their measurements to actual values and apply these principles to analyze and decipher the components of a food as indicated on the Nutrition Facts label.
Students will learn the role of bacterial fermentation and evaluate the effect of fat content, sugar content (lactose), and temperature in bacterial fermentation as they make yogurt.
Students will learn the concept of simple carbohydrates (sugar) in the diet and their role in providing energy to the body, compare saturated sugar solutions, and evaluate the sugar content of common beverages and sugar consumption within their own diet.