Relier Pairs Planet Earth IntroVersion en ligne Introduccion de características del planeta. Movimientos del planeta y situación de las estaciones anuales. par Estibaliz Martinez 1 The revolution of the Earth is... 2 The seasons are the result of... 3 It is winter in the Northern hemisphere when... 4 It is spring or autumn when... 5 It is summer in the Northern hemisphere when... 6 The rotation of the Earth is ... its movement around its own axis. the tilt of the Earth and its orbit round the Sun. its elliptical orbit around the Sun. the Sun´s rays fall on the Northern hemisphere. the Sun´s rays fall on the Equator. the Sun´s rays fall on the Southern hemisphere.