A statement that describes an observed pattern in nature, based on repeated experimental evidence, that holds true under specific conditions.

Here's why:

* Observed pattern: Scientific laws describe consistent, predictable relationships in the natural world.

* Repeated experimental evidence: These patterns are not just guesses, they're backed up by numerous experiments and observations.

* Specific conditions: Laws often have limitations and apply under certain circumstances. They might not hold true in all situations.

Here's how it differs from other concepts:

* Theory: A scientific theory is a well-substantiated explanation of some aspect of the natural world. It's supported by a vast body of evidence and can be used to make predictions. Theories are more complex and expansive than laws.

* Hypothesis: A hypothesis is a proposed explanation for an observation, which can be tested through experiments. It's a tentative idea, unlike a law which is well-established.

Examples of scientific laws:

* Newton's Law of Universal Gravitation: Describes the force of attraction between any two objects with mass.

* Law of Conservation of Energy: States that energy cannot be created or destroyed, only transformed from one form to another.

* Boyle's Law: Describes the relationship between the pressure and volume of a gas at constant temperature.