Understanding Hypotheses
This worksheet focuses on understanding, formulating, and evaluating scientific hypotheses for Grade 11 science students.
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Understanding Hypotheses
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Read each question carefully and provide your best answer. This worksheet will test your understanding of scientific hypotheses.
1. Which of the following best defines a scientific hypothesis?
A proven fact about the natural world.
A proposed explanation for a phenomenon that can be tested.
A general statement summarizing observed patterns.
A conclusion drawn from an experiment.
2. A good scientific hypothesis must be:
Complex and abstract.
Untestable and subjective.
Testable and falsifiable.
Always proven true by experiments.
3. A hypothesis often takes the form of an 'If , then ' statement.
4. The part of the hypothesis that is changed or manipulated by the experimenter is called the variable.
5. The expected outcome or measurable effect in a hypothesis is known as the variable.
6. A scientific hypothesis is essentially the same as a scientific theory.
True
False
7. If an experiment disproves a hypothesis, the hypothesis is always discarded completely.
True
False
8. Formulate a testable hypothesis for the following observation: "Plants grow taller when exposed to more sunlight."
9. Explain the difference between a null hypothesis and an alternative hypothesis.
10. A student observes that a new fertilizer seems to make their tomato plants produce more fruit. They want to set up an experiment to test this. What would be an appropriate hypothesis for their experiment? Identify the independent and dependent variables.
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