Origins of Life

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Abiogenesis

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The original evolution of life or living organisms from inorganic or inanimate substances.

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Biogenesis

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The principle that living organisms are produced only by other living organisms.

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Spontaneous Generation

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An outdated theory that life can arise from non-living matter.

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Law vs. Theory

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A law describes what happens under certain conditions in nature, while a theory explains how and why something happens.

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Development of Scientific Theory

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The process by which scientific theories are formulated, tested, and validated or refuted.

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Chemical Evolution

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The theory that life originated through the chemical transformation of inanimate substances.

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Miller-Urey Experiment

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An experiment that simulated early Earth conditions to test the chemical origins of life.

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Sidney Fox

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A scientist known for his work on the origin of life, particularly the formation of proteinoid microspheres.

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Louis Pasteur

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A scientist who disproved spontaneous generation and developed the germ theory of disease.

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Aristotle

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An ancient Greek philosopher who proposed early ideas about spontaneous generation.