Collect a variety of display items - pictures, photos, charts, graphs. Use different size letters for the text. Most important should have the larger letters. Place title in central location. Correct spelling and grammar is essential.
Place results in a prominent position.
Don't cram things together - place only the most important things on the board. Develop a catchy title realted to the problem you investigated. Practise giving your presentation to friends or family members. If you have a partner divide the presentation equally. Prepare for questions by doing some reading.