Choosing a Good Topic
Pick something you're genuinely curious about that is testable in your available time and resources. Good topics come from everyday observations: "Why does bread mold faster in some containers?" "Does music affect plant growth?"
Avoid topics that require dangerous materials, very long time periods, or can't be tested experimentally (no "research only" projects).
Project Display Board
A typical three-panel display board includes: Title (big and visible), Question & Hypothesis, Materials & Procedure, Data Tables & Graphs, Results & Conclusion, Abstract (short summary).
Judges look for: clear hypothesis, controlled experiment (only one variable changes), organized data, graphs with labeled axes, honest conclusion (even if your hypothesis was wrong).