Scientific Concepts and Methods

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Observation

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Using your senses to gather information about the world around you.

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Hypothesis

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A possible explanation or answer to a question that can be tested.

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Experiment

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A test conducted to support or refute a hypothesis.

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Data

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Information collected during an experiment or investigation.

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Variable

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Any factor that can change in an experiment.

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Independent Variable

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The variable you change on purpose.

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Dependent Variable

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The variable you measure or observe.

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Controlled Variable

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The variables kept the same to ensure a fair test.

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Inference

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A conclusion or explanation based on observations and prior knowledge.

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Prediction

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A statement about what will happen based on evidence or experience.