This document discusses factors that limit the rate of photosynthesis, including light intensity. It provides learning outcomes about identifying and explaining limiting factors of photosynthesis and interpreting related data. It prompts considering different conditions and their relation to data collection. It suggests carrying out an activity measuring the effect of light intensity on photosynthesis and collecting data using the independent variable of distance from a light source. Keywords mentioned include photosynthesis, environment, light intensity, and limiting factor.