In this lesson, students will use their knowledge of solutes, solvents, and parts per million to analyze fertilizer options that meet plant nutrient requirements while evaluating costs associated with managing plant nutrients.
Students examine different types of soil that have been mixed with water and allowed to settle. Next, they work with a soil model to investigate its components (sand, silt, and clay) and learn how the properties of these components affect the passage or retention of water through the soil and the amount of air in the soil.
Students will explain the roles of diffusion and active transport in moving nutrients from the soil to the plant, describe the formation of soil and soil horizons; and describe the events in the Great Dust Bowl, how they relate to soil horizons, and how those events affected agricultural practices.
Students use the Claim, Evidence, and Reasoning model to evaluate styles of housing used for hens that lay eggs. Using critical thinking and scientific investigation skills, students will compare housing styles, determine which system meets their animal welfare standards, and engineer their own hen house model to meet the needs of laying hens. This lesson covers a socioscientific issue and aims to provide students with tools to evaluate science within the context of social and economic points of view.
In this lesson students will describe the domestic food supply chain and identify the use and types of energy involved in the growth, harvest, processing, transportation, and marketing of an agricultural commodity.
Students learn what factors affect a country's ability to produce their own food and how food expenses differ throughout the world.
Students evaluate food package labels, determine their meaning, and use the Claim, Evidence, and Reasoning model to determine the value of the label in relation to food production practices, nutrition, health, and food safety. Students will engage in critical thinking to recognize the impact of food package labels in relation to marketing, consumer perceptions of food, and farming practices.
Students study the science of amino acids, proteins, enzymes, and beneficial bacteria to explore the phenomena, "Why does each variety of cheese taste different when the ingredients are the same?"
Students compare the components of beef and plant-based burgers by determining the production and processing methods of each product; evaluate the ingredients and nutritional differences between beef and plant-based products; and discuss different points of view in the agricultural industry concerning plant-based proteins and traditional beef. This lesson covers a socioscientific issue and aims to provide students with tools to evaluate science within the context of social and economic points of view.
Students explore the phenomenon of what makes bread dough rise. Using baker's yeast, students will observe alcoholic fermentation and its connection to cellular respiration as they are challenged to act as food scientists and develop the best recipe for quick-rising bread dough.
This lab introduces students to the effect temperature has on reducing and controlling the growth of bacteria. Students will use conventionally pasteurized and ultra-high-temperature (UHT) milk to observe how different temperatures (hot, room temperature, cool, and freezing) affect the growth of spoilage bacteria. They will also learn about the importance of pasteurization in keeping food safe.
This lesson allows students to apply the concept of Mendelian genetics and learn about the double muscling trait found in cattle. Students will apply their knowledge of genetics and Punnett squares to calculate the probability of genotypes and use a pedigree chart.