Starting as an undergraduate researcher, and continuing through my master's studies, I worked on the climate and age gradients of the Hawaiian Islands. Using the unique characteristics of these islands, I have studied the effects of mean annual precipitation on the potential for iron redox activity on four different age gradients. I collected my data using both active and passive redox measurements. Using these collected data along with that of others, I have been able to make predictions on the actual Fe redox activity of the Hawaiian soils. From that prediction we can further extrapolate on the movement and cycling of other key soil constituents associated with Fe redox, like that of P, C, Mo and other trace metals.