* Carbon Dioxide (CO2): This gas is taken in from the atmosphere through tiny pores called stomata on the leaves. It provides the carbon atoms needed to build sugars.
* Water (H2O): Water is absorbed from the soil through the roots and transported up the plant. It provides the hydrogen atoms needed for sugars, and also plays a role in the chemical reactions.
* Sunlight: This provides the energy required to drive the chemical reactions of photosynthesis. Specifically, it excites electrons in chlorophyll, a pigment that absorbs light energy.
Let me know if you'd like to know more about the process of photosynthesis!
