Ordonner les Lettres Planets of the Solar SystemVersion en ligne Put the letters in order to discover the name of the 8 planets of the Solar System. Be careful, you got 20 seconds per planet, and a maximum of 5 mistakes! par Educaplay Educational Resources 1 M E C R U Y R 2 U N V E S 3 T H R E A 4 A R S M 5 T P R J U E I 6 T U R S A N 7 A U N U R S 8 E T N P N E U