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