Photosynthesis doesn't "turn into" anything. It's a process, not a substance.

Here's what photosynthesis does:

It takes in:

* Carbon dioxide (CO2): From the air

* Water (H2O): From the soil

* Sunlight: As energy

And it produces:

* Glucose (C6H12O6): A type of sugar, which is the plant's food

* Oxygen (O2): Released into the atmosphere

So, you could say that photosynthesis converts carbon dioxide and water into glucose and oxygen, using sunlight as the energy source.