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