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 Y R R M C E U 2 S V U E N 3 E T R A H 4 R M S A 5 P U R I T E J 6 A T U R N S 7 A N U R U S 8 N T E U E P N