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What is experimentation?

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A scientific investigation that involves identifying and controlling variables to test a hypothesis.

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What happens to light when it moves from a vacuum to air?

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Light slows down when it moves from a vacuum to air due to the change in medium.

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What are qualitative observations?

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Observations that deal with descriptions that cannot be expressed in numbers.

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What is a Scientific Law?

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A statement that describes what scientists expect to happen every time under a particular set of conditions.

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What energy conversions occur when energy is transformed into unusable heat energy?

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Chemical to electrical to radiant and thermal energy conversions.

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What is the difference between quantitative and qualitative observations?

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Quantitative observations involve numbers and measurements, while qualitative observations involve descriptions that cannot be quantified.

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What is the purpose of controlling variables in an experiment?

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To ensure that the results are due to the independent variable and not other factors.

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What is a hypothesis?

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A testable prediction about the relationship between two or more variables.

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What is the scientific method?

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A systematic process used by scientists to investigate phenomena, acquire new knowledge, or correct and integrate previous knowledge.

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What is the role of a control group in an experiment?

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To provide a standard for comparison against the experimental group.