Scientific law and scientific theory are two important concepts in the field of science. Despite their differences, they share some similarities. In this article, we will explore these similarities.

What is a Scientific Law?

A scientific law is a statement that describes an observable phenomenon in nature. It is a concise and mathematical representation of a natural phenomenon that has been observed repeatedly over time. Scientific laws are based on empirical evidence and are considered to be universally true.

What is a Scientific Theory?

A scientific theory, on the other hand, is an explanation of an observed phenomenon that is supported by empirical evidence. It is a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, and tested hypotheses. Unlike laws, theories can be revised or even discarded if new evidence contradicts them.

Similarities Between Scientific Law and Scientific Theory

Despite their differences, scientific laws and scientific theories share some similarities. Here are some of them:

Both Are Based on Empirical Evidence

Both scientific laws and scientific theories are based on empirical evidence obtained through observation or experimentation. They are not just mere speculations but rather explanations that have been tested through experiments or observations.

Both Are Subject to Change

Scientific laws and theories are subject to change when new evidence emerges. While laws may be more rigid than theories in terms of change, they too can be updated or even replaced if new observations contradict them.

Both Are Used to Make Predictions

Scientific laws and theories can both be used to make predictions about future events or observations. For instance, the law of gravity predicts how objects will behave when subjected to gravitational force while the theory of evolution predicts how species will evolve over time.

Both Are Essential for Advancing Science

Both scientific laws and theories are essential for advancing science. They help scientists to understand the natural world and make predictions about future events. They also serve as a basis for new research and discoveries.


In conclusion, scientific laws and scientific theories may have some differences, but they share several similarities. Both are based on empirical evidence, subject to change, used to make predictions, and essential for advancing science. Understanding the similarities between these two concepts is crucial for anyone interested in the field of science.