Using Planetary Magnetism to Increase Student Engagement in Solar System Astronomy Courses

Solar System Astronomy courses at community colleges primarily serve general education students, emphasizing the scientific process to fulfill academic requirements. To enhance engagement in astronomy courses, we used a multi-tiered approach to study planetary magnetic fields where community college students practice the processes of science. This includes conducting research-grade observations with a proton precession magnetometer, using a smartphone magnetometer in a scaffolded lab activity, and contributing data to NOAA's CrowdMag citizen science project. These three activities encourage scientific inquiry, reinforce key concepts, and improve students' ability to communicate scientific ideas. All activities fit within one standard lecture and lab period (5 contact hours), and they can be used together or individually. Students compare their observations of Earth's magnetic field with data from USGS magnetometer stations and NASA resources on planetary magnetism. They distinguish crustal magnetism from broader planetary magnetic fields, and students examine how planetary magnetism contributes to habitability on planetary surfaces. By engaging in hands-on geomagnetic observations, students develop problem-solving skills, apply quantitative methods, and strengthen their physical science knowledge to meet general education requirements.