1. The document discusses the scientific method and its steps, including forming a hypothesis, designing an experiment to test the hypothesis, analyzing the results, and determining whether to accept or reject the hypothesis based on the experimental data. 2. It provides an example of using the scientific method to study the relationship between dissolved oxygen concentration and fish populations. Students are asked to research this relationship, form a hypothesis, analyze sample data in a graph, and determine whether to accept or reject their hypothesis. 3. The document also discusses two satirical articles and asks students to identify what dihydrogen monoxide (DHMO) really is and whether it is toxic to fish based on its relationship to oxygen and fish populations.