Students learn how the organs of the digestive system break down food into nutrients that the body can use. Students learn how the circulatory system transports nutrients, oxygen, and water to body cells and carries away cellular wastes. Students learn about circulatory system problems and how to prevent them.
Students learn how the nervous system coordinates information gathered by the sense organs.
By the end of fourth grade, students will develop an understanding of systems, order, and organization. Students will color and identify parts of the heart and each part's function. Students will discuss ways to keep your circulatory system and body healthy. Students use scientific methods to determine how their smell threshold varies using different concentrations of mint extract. Students prepare five solutions of mint extract and then determine when the solution's odor can first be detected.