Exhibit Topics Fall Exhibit: Students in fifth grade study topics according to state and district standards. Students will study coral reefs and natural disasters. The key knowledge students will gain is the understanding balance in the environment and how floods, earthquakes, tornadoes, and volcanoes affect the earth's structure. Spring Exhibit: Students will explore the 6 simple machines through experimenting and hands-on experiences.  They will chose one simple machine to teach by constructing a real world example.