Article 13 says every child must be free to express their thoughts and opinions and to access all kinds of information, as long as it is within the law.
Erthygl 13 yn dweud rhaid i bob plentyn fod yn rhydd i fynegi ei feddyliau a’i farn ac i gael gafael ar bob math o wybodaeth, ar yr amod nad yw’n anghyfreithlon.