Relier Pairs UNIVERSE DEFINITIONSVersion en ligne Match the words and the definitions par FRANCIS FERNANDEZ ESTARLICH 1 An Astronomical Unit (AU) 2 Eclipse of the Sun 3 Light Year 4 Eclipse of the Moon 5 6 The Big Bang theory 7 Day and night 8 9 10 Seasons and the length of the day It happens when the Moon is positioned between the Sun and the Earth. rotation Is the distance which light travels in a year. They are consequences of the Earth´s revolution It explains the creation of the Universe and its expansion It is an average distance between the Earth and the Sun revolution They are consequences of the Earth´s rotation low tide It happens when the Earth is positioned between the Sun and the Moon and stops the Moon from reflecting light from the Sun.