We learn all about photosynthesis, the process through which plants make food, with new, precise, yet easy-to-understand, definitions and explanations. Plants need three components to make food: carbon dioxide, water, and solar energy. Different parts of plants are involved in photosynthesis: roots, leaves, stems, xylem, stomata, and chloroplasts. And what is produced by plants during photosynthesis?  The answers to this and other questions are covered in depth with detailed graphics, diagrams and exciting video.  On-screen, multiple-choice reviews at the end of each segment reinforce important concepts and make learning fun.