Variables and controls

What is Science?

Why do we have to study science? What good is it? For that matter, what is it? That question, "What is science?", is a very good one, and not easy to answer. Many different definitions have been proposed by different sources. After looking through many of them, I have tried to combine and distill them into a workable definition that we can use in our study of science.

Contagious Yawns

This experiment is a chance for you to do some scientific research on a problem that has never been solved. We all yawn, and you have probably noticed that if someone else yawns, you do too. Why? There are several hypotheses, but none has enough solid evidence to become an accepted theory.

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