Scientific Investigation Concepts

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What is required to investigate a question scientifically?

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You can only investigate a question scientifically if you can collect data (measurements or observations).

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How can you identify if a question can be investigated scientifically?

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Give a reason for your judgement.

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What is an independent variable?

Back

It is what you change in an experiment.

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What is a dependent variable?

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It is what you measure in an experiment.

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What are control variables?

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They are what you keep the same to ensure a fair test.

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What is a hypothesis?

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A prediction about what you think your results will show.

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What is accuracy in scientific terms?

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Results being close to the true value.

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What does repeatable mean?

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The method is repeated by the same person, using the same method and equipment, and the same results are achieved.

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What is a fair test?

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Only one variable has been changed.

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What does reproducible mean?

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An investigation is carried out by another person, or using alternative equipment/techniques, and the same results are achieved.