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This Week 3 PowerPoint presentation introduces Grade 9 students to the essential process of formulating a scientific hypothesis and identifying different types of variables in research. The lesson begins by defining what a hypothesis is and its importance in the scientific method. It explains how to write a testable and measurable hypothesis, using clear examples. Students will also learn to distinguish between independent, dependent, and controlled variables, including how each one functions within an experiment. The presentation includes interactive activities and sample research scenarios to help students practice writing hypotheses and identifying variables effectively. This lesson helps students prepare for their scientific investigations.