This reading set explores what the Nature of Science is. It promotes critical thinking and reading skills by comparing a reputable and sataritical science article.
It also shows that science can be fun or strange by looking at a published article that won the Ig Nobel award.
Finally there is a flow chart that you can use or have the students research for the 3 main branches of knowledge. I've used this to introduce evolution, because students often will confuse science with religion. This way, students can see that science and religion are complementary and part of all their knowledge.