Simplify the following text for a Grade 6 native English-speaking person.
Original: These include the Free Church of Scotland ( formed of those congregations which refused to unite with the United Presbyterian Church in 1900 ) , the United Free Church of Scotland ( formed of congregations which refused to unite with the Church of Scotland in 1929 ) , the Free Presbyterian Church of Scotland ( which broke from the Free Church of Scotland in 1893 ) , the Associated Presbyterian Churches ( which emerged as a result of a split in the Free Presbyterian Church of Scotland in the 1980s ) and the Free Church of Scotland ( Continuing ) ( which emerged from a split in the Free Church of Scotland in 2000 ) .
Simplified: The Church of Scotland is the national church of Scotland , established by law . It is Presbyterian .