Models can be physical, mathematical or conceptual
A globe, climate model and diagram of an atom all represent selected features rather than every detail.
Every model has a scope
A useful model can still fail outside the conditions for which it was designed.
Predictions test models
When a model repeatedly makes good predictions, confidence in its usefulness grows.
Better models replace weaker ones
Scientific progress often means improving the approximation rather than finding a model with no limitations.
This page explains scientific concepts for general learning. It does not replace laboratory safety procedures, professional engineering guidance, or individualized medical advice.