1) What is the milky way galaxy made up of?  a) Gas and dust b) Billions of stars c) Solar systems d) All of the above 2) What is in the centre of our solar system?  a) Moon b) Sun c) Jupiter 3) How many planets are there? a) 7 b) 6 c) 8 4) What planets are solid with rocky surfaces? a) Mercury, Venus and Mars b) Jupiter, Venus and Mars c) Earth, Jupiter and Mars 5) What is the hottest planet in our solar system? a) Mercury b) Venus c) Mars 6) What planets are made of gases? a) Jupiter and Mars b) Jupiter and Saturn c) Saturn and Mercury 7) What planets are called the "icy giants"? a) Neptune and Saturn b) Uranus and Earth c) Uranus and Neptune 8) What are dwarf planets? a) Planets which are too small to be called planets b) Planets that do not orbit the sun c) Planets that are too cold 9) One example of dwarf planet... a) Polus b) Pluto c) Membris 10) Beyond the Kuiper Belt, there is a giant cloud of.... a) hot objects b) icy objects c) small objects

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