Final answer:
When writing a science paper, it is important to use credible sources such as .edu and .gov websites. Carefully evaluate the content of .edu websites as they may not have been written by scientists. Also, consider the author, purpose, facts versus opinions, publication date, and support from other credible sources when reviewing a source.
Step-by-step explanation:
When writing a science paper, it is important to use several different sources of information to ensure credibility. Sources such as .edu (school and college websites) and .gov (government websites) are the most trustworthy. However, it is still necessary to thoroughly evaluate .edu websites as they may have been written by students rather than scientists. Additionally, .org and .com sites can be credible, but it is important to carefully examine the content. When reviewing a source, consider the author, purpose, facts versus opinions, publication date, and support from other credible sources.