Explain the meaning and classification of knowledge. Illustrate how knowledge can be validated with examples.

the scientific generalizations are

1. Heated metals expand.
   
2. Light is refracted when it passes from less dense to more dense media.
   
3. Metals conduct heat and electricity.
   

Generalizations enable man to construct broader, more inclusive explanations for the phenomena he observes.

Laws of knowledge

Scientific knowledge begins only when we begin to notice regularities in the course