* Photosynthesis: Green plants use a process called photosynthesis to convert light energy from the sun into chemical energy stored in sugars (food). This process happens in chloroplasts, which contain chlorophyll (the green pigment).
* Sunlight: Provides the energy to drive the process.
* Carbon dioxide: Absorbed from the air and used to create sugars.
* Water: Absorbed from the soil and used in the chemical reactions of photosynthesis.
The sugars produced during photosynthesis are the plant's primary source of energy. They use this energy for growth, reproduction, and other life processes.
