What is the difference between a Sectional Aeronautical Chart and the Terminal Area Chart (TAC)?

Note: Both Chats include aeronautical information such as airports, airways, special use airspace, and other pertinent data. They both portary alot of the same information including terrain, populated placed, roads, railroads and distinctive landmarks 1.) Scale on a Sectional Aeronautical Chart is 1:500,000 (1 inch = 6.8 NM) 2.) TAC scale is 1:250,000 (1 inch = 3.43 NM). They show more significant detail than the Sectional Charts, but have small area coverage.