182 pages, 58 dialogues – Example topics include geologists, earth history, hypothesis, superposition, carbon cycle, minerals, magma, igneous, metamorphic, sedimentary, deposition, stalactite, stalagmite, fossil record, earthquakes, volcanoes, plate tectonics, scientific theory, plate boundaries, aquifer, models, impermeable, groundwater, atmosphere, wind and waves, oceanography, seafloor, ocean currents, thermal layers, glaciers, soil formation, space science, maps and many more. Note that the