Observations and Inferences in Science

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What is an observation in science?

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An observation is a statement based on what you see, hear, or measure. For example, 'The dog is wearing a hat.'

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What is an inference in science?

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An inference is a conclusion drawn from observations. For example, 'Tom worked extra hours to earn more money between April and July' is an inference based on the graph.

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What should always be the same in an experiment?

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Constants should always be the same in an experiment to ensure that the results are valid.

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What is a dependent variable?

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The dependent variable is the measurable factor in an experiment that changes in response to the independent variable.

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How many variables should be tested at one time in an experiment?

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Only one variable should be tested at a time to ensure clear results.

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What is the difference between an observation and an inference?

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An observation is a direct statement based on sensory data, while an inference is a conclusion drawn from those observations.

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What is a constant in an experiment?

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A constant is a factor that remains unchanged throughout the experiment.

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What is an independent variable?

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The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

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Why is it important to have a control in an experiment?

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A control is important because it provides a standard for comparison, helping to isolate the effects of the independent variable.

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What is the purpose of conducting an experiment?

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The purpose of conducting an experiment is to test a hypothesis and gather data to support or refute it.