* Carbon dioxide (CO2): This is the source of carbon atoms that are used to build glucose.

* Water (H2O): Water is the source of hydrogen atoms and also provides electrons for the process.

* Sunlight (light energy): This provides the energy to power the reactions of photosynthesis.

Chlorophyll: While not a material in the sense of being consumed, chlorophyll is a pigment found in chloroplasts that captures light energy. It is essential for the process to occur.

Let me know if you have any other questions about photosynthesis!