Assess students' ability to design a fair scientific test comparing how different amounts of light affect plant growth. Tasks include stating a clear hypothesis, identifying the independent variable (light amount), dependent variables (e.g., plant height, leaf count), and constants to control; choosing sample size and replicates appropriate for Grade 3–5, outlining a simple step-by-step procedure, describing measurement methods and timeline, and explaining basic ways to record and compare results (tables, simple graphs) while addressing safety and observational accuracy.