This document contains an outline and overview of activities exploring solar cells and photosynthesis. The activities include: 1) investigating how plant disks perform photosynthesis with and without light; 2) separating leaf pigments using chromatography; 3) measuring a solar cell's performance; and 4) making a dye-sensitized solar cell. It then discusses using a solar cell to power an alarm for a pool to prevent overflow and save water. In conclusion, it recommends further developing the alarm circuit design and adding solar cells to power it day and night.