Photosynthetic Pictures Are Worth More Than a Thousand Words

This activity provides an opportunity for learners to observe and examine how carbon dioxide, water, and light produce glucose/starch through a process called photosynthesis. This process is validated through the production of starch picture images produced on a geranium leaf. The fundamental question answered by this activity is: "What actually occurs in plant leaves as a result of photosynthesis?" Learners construct a hypothesis, set up and run the experiment, record observations, and answer reflection questions. This resource guide includes assessment and extension suggestions. When executing this lab, safety precautions involving boiling alcohol should be strictly followed.