Photosynthesis Diagram
Free printable photosynthesis diagram — a labeled illustration showing how a plant uses sunlight, water and carbon dioxide to make glucose and release oxygen. Download PDF or PNG for Letter paper.
The ingredients and products of photosynthesis
Photosynthesis is how green plants make their own food, using sunlight, water and carbon dioxide. Here is what happens at each labeled part of the diagram:
| Part | What it does |
|---|---|
| Sunlight | The energy the leaf captures to power photosynthesis. |
| Carbon dioxide | A gas the plant takes in from the air. |
| Water | Absorbed by the roots and carried up to the leaves. |
| Glucose | The sugar (food) the plant makes and uses for energy and growth. |
| Oxygen | A gas the plant releases into the air as a by-product. |
Companion worksheet
A free fill-in worksheet with an answer key, built from the labels above — students match each part to its description, then answer a couple of short questions. Great for a quick check after using the diagram.
How to print
Choose Download PDF for a ready-to-print file that fits US Letter paper (8.5 × 11") in landscape, or Download PNG for the high-resolution image.
Frequently asked questions
What is photosynthesis?
Photosynthesis is the process green plants use to turn sunlight, water and carbon dioxide into glucose (their food), releasing oxygen as a by-product.
What does a plant need for photosynthesis?
A plant needs sunlight, water and carbon dioxide. It uses these to make glucose and gives off oxygen.
What paper size should I print this on?
The diagram is sized for standard US Letter paper (8.5 × 11") in landscape orientation. Use "Download PDF" for a print-ready file that fits the page automatically.