Students determine their smell threshold using different concentrations of mint extract. Students compare the endurance and strength of the heart with their hand and arm muscles. Students find their resting heart rate, then squeeze a ball to simulate the beating of their heart. Students find that their heart must work hard to maintain even a resting heart rate. Students will complete Lab Manual pages 75- 76 as they do the activity.
Students conduct a survey to determine how frequently their classmates wear bicycle helmets.
Students use the data to prepare a bar graph and make an inference about the safety attitudes of the students who were surveyed. Students will complete Lab Manual pages 77-78 as they do the activity. Students compare the nutritional information from three different boxes of cereal. Then, based on the cereals' fat and fiber content, students choose the most healthful cereal. Students will complete Lab Manual pages 73-74 as they do this activity.