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# Hypothesis

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Week 2 Unit 1

Week 2 Unit 1

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### Transcript

• 1. Predicting and Forming a Hypothesis
• 2. HYPOTHESIS <ul><li>A guess </li></ul><ul><li>假说 </li></ul><ul><li>hipótesis </li></ul><ul><li>가설 </li></ul><ul><li>Hipoteza </li></ul>
• 3. Questions 1,2,3,4 #3 #2 #1 Hypothesis (guess) Dependent variable (no control) Independent variable (control) Inference Observation
• 4. Question 1
• 5. <ul><li>Observation  inference  hypothesis (guess) </li></ul>O 2 Dead Fish  No oxygen in the water  If oxygen level increases, fish population will increase O 2
• 6. O 2 O 2 Independent variable? (control) Dependent variable? (no control)
• 7. Hypothesis IF oxygen level increases THEN fish population will increase. O 2
• 8. Question 2
• 9. IF the cola contains sugar, THEN it will sink The regular cola sinks The diet cola floats Variables Observation Independent variable (control): How much SUGAR in the cola Dependent variable: (no control) distance the cola goes up Hypothesis
• 10. Question 3
• 11. Plastic bag Pencil Variables Observation Hypothesis
• 12. Variables Observation Hypothesis Inference There is water in the plastic bag The pencil is sharp The pencil breaks the bag and the water pours out A GUESS If there are MORE holes in the bag, then MORE water will pour out. Independent variable (control): Number of holes in the bag Dependent variable (no control): How much water pours out Plastic bag Pencil
• 13. 10. Control 9. Width 8. Length 7. Chart 6. Graph 5. Hypothesis 4. Dependent Variable 3. Independent Variable 2. Inference 1. Observation Example Definition (words/pictures)