A: A fourth cousin is someone in a family who shares the same great-great-great-grandparents. First cousins share the same grandparents and second cousins have the same great-grandparents. Ordinal numbers of cousins are in the same generation as each other.
8 to 10 years-Should not be left alone for more than 1Â½ hours and only during daylight and early evening hours. 11 to 12 years-May be left alone for up to 3 hours but not late at night or in circumstances requiring inappropriate responsibility. 13 to 15 years-May be left unsupervised, but not overnight.
Most authorities agree that leaving a 12 year old alone at home for an hour or two is acceptable, but they should not be responsible for other children.   Legal Age (Updated)   There are very few states in the U.S. with legal minimum ages for children home alone, but many state agencies have published guidelines.