scientific theory

Thân thiện

A scientist presents a scientific theory on a whiteboard.

Definition

Noun: A well-substantiated explanation of some aspect of the natural world that is based on a body of evidence, facts, and repeated observations. It is a coherent statement or set of ideas that explains observed phenomena and can be used to make testable predictions.

Usage

A scientific theory is the highest level of understanding in science. It is not a guess or a hypothesis, but a comprehensive explanation that has been extensively tested and confirmed through observation and experimentation. Its core characteristic is that it must be falsifiable, meaning it can be proven wrong by evidence.

Examples

• The scientific theory of evolution by natural selection explains the diversity of life on Earth.
• Einstein's scientific theory of general relativity describes gravity as the curvature of spacetime.
• The germ theory of disease is a foundational scientific theory in medicine.
• A key feature of any valid scientific theory is its ability to make predictions that can be tested.

Advanced Usage

• "To be elevated to the status of a scientific theory": This phrase describes how a hypothesis becomes a theory after rigorous testing and validation.
  • The idea was initially controversial, but after decades of supporting evidence, it was elevated to the status of a scientific theory.
• "To challenge/undermine a scientific theory": Refers to presenting new evidence that contradicts an established theory.
  • New data from the experiment could potentially challenge the prevailing scientific theory.

Variants and Related Words

• Theory (in common usage): Often used to mean a guess or speculation (e.g., "I have a theory about why the traffic was bad"). This is distinct from a .
• Hypothesis: A proposed explanation for a phenomenon, made as a starting point for further investigation. It is a testable prediction that, if supported by evidence, may contribute to a scientific theory.
• Law (Scientific Law): A statement based on repeated experimental observations that describes some aspect of the natural world. A law states happens (e.g., the law of gravity), while a theory explains it happens (e.g., the theory of general relativity).

Synonyms

• Explanatory framework
• Systematized explanation
• Model (in a scientific context)

Related Concepts

• Falsifiability: The essential property of a scientific theory that it can be proven false by contradictory evidence.
• Paradigm: A dominant theory or framework in a scientific discipline that shapes research.
• Peer review: The process by which a scientific theory is evaluated by other experts in the field.

Học thuật

Noun

1. a theory that explains scientific observations
   • scientific theories must be falsifiable