Chemistry CDF Vocabulary

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Controlled Experiment

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A test where only one variable is changed at a time.

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Inference

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A logical conclusion based on observations and prior knowledge.

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Validity

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The extent to which an experiment accurately measures what it’s supposed to.

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Scientific Investigation

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A process used to systematically explore and answer questions using the scientific method.

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Pseudoscience

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Claims or beliefs that appear scientific but lack evidence or testability.

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Law of Conservation of Mass

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Matter cannot be created or destroyed in a chemical reaction; mass is conserved.

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Model

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A representation used to understand or predict behavior of objects, systems, or concepts.

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Radioactive Decay

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The process where unstable atomic nuclei lose energy by emitting radiation.

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Intermolecular Forces

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Attractive or repulsive forces between molecules.

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Chemical Properties

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Characteristics that describe a substance’s ability to undergo chemical changes.