A statement based on repeated experimental observations that describes a fundamental relationship in nature.

Here's a breakdown of what that means:

* Based on repeated experimental observations: Scientific laws are not simply guesses or theories. They are derived from careful and repeated experiments that consistently produce the same results.

* Describes a fundamental relationship in nature: Scientific laws describe how things behave in the natural world. They are not explanations of why things happen, but rather descriptions of what happens under specific conditions.

* Universal: Scientific laws are believed to be universal, meaning they apply everywhere in the universe, not just in specific situations.

Important distinctions:

* Scientific laws are different from scientific theories. Theories explain why things happen, while laws describe what happens. Theories can be modified or replaced as new evidence is discovered, while laws are generally considered to be very robust and unlikely to be overturned.

* Scientific laws are not absolute truths. They are the best descriptions we have based on our current understanding of the universe, and they could be revised in the future with new discoveries.

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.

Remember that scientific laws are constantly being refined and tested. As our understanding of the universe grows, so too will our knowledge of scientific laws.