题目内容：

阅读下面信息，用恰当的词完成下面的短文，每空一词。

Science is about asking questions. A science fair project is an experiment or a research effort. Through such a project, you learn how to find problems and how to solve them.

A science fair project includes at least three parts: the display poster board, the exhibit (展览) materials, and the written report.

The display poster board

The display poster board is very important. It is what people first see. As a kind of "advertisement" for your project, it must be carefully designed. Usually, the board should include the key points of your research.

The exhibit materials

These materials can be the most exciting part of any science project. They usually include the items you used in your project. Together, they tell a story. People should be able to understand your project on their own through these materials.

The written report

No matter what you do, you need to record your findings in a written form. The written report should include all the information you collected while you were working on your project. The report may also include your understanding of the topic you choose.

A science fair project is an experiment or a research effort, 1. at least three parts. First, the display poster board is of great 2.. There are some key points of your research on it. So it must have a 3. design. Second, the exhibit materials can be the most exciting part of a science project. People should be able to understand your project 4. through these materials. Third, it is 5. to record the things you found in a written form. The written report includes not only all the information you collected but also your understanding of the topic you choose.