Beth Campbell Western Michigan University Senior, College of Education April, 2006 Participant in Research Experience for Teachers (RET) Workshop What is chlorophyll? Chlorophyll is the green pigment, or color, found in plants that helps the plant make food. Photosynthetic Pigments. Pigments are colorful compounds. Pigments are chemical compounds which reflect only certain wavelengths of visible light. Photosynthesis. Leaves are nature's food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide from the air. Useful Reference Materials Encyclopedia.com: Wikipedia: Chloroplast Structure Plants use energy from the sun in tiny energy factories called chloroplasts. The green color of leaves is attributable largely to these.