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