What is the difference between fluid intelligence and crystallized intelligence ?

Fluid intelligence The ability to handle novel tasks, and solve problems through abstract thinking and logic. A person can think speedily and come up with solutions for new problems without relying on past experience, and knowledge acquired. Crystallized intelligence It is the use of the knowledge gained previously which can be seen in one's language, vocabulary, and general information. It involves the recalling of information and skills acquired previously. The older a person gets, he/she acquires more knowledge, and crystallized intelligence increases. Read More>.Cattell-Horn Theory of Intelligence