Concept Car

Concepts are vital to the development of scientific knowledge. For example, it would be difficult to imagine physics without concepts like: energy, force, or acceleration. Concepts help to integrate apparently unrelated observations and phenomena into viable hypotheses and theories, the basic ingredients of science. The concept map is a tool that is used to help researchers visualize the inter-relationships between various concepts.
Ontology of concepts
Although the mainstream literature in cognitive science regards the concept as a kind of mental particular, it has been suggested by some theorists that concepts are real things (Margolis:8). In most radical form, the realist about concepts attempts to show that the supposedly mental processes are not mental at all; rather, they are abstract entities, which are just as real as any mundane object.