1) what is the hottest colour for a star? a) white b) blue c) orange d) red e) yellow f) green 2) how many planets are there? a) 6 b) 10 c) 8 d) 11 e) 7 f) 9 3) what is the biggest planet in our solar system?  a) jupiter b) venus c) saturn d) pluto e) mars f) earth 4) where does a black hole derives from a) living stars b) planets c) exploded planets d) they just appear e) exploding stars f) thin air 5) who was the fist person to land on the moon? a) neil armstrong b) buzz aldrin c) charles conrad d) Cernan e) shmitt f) van dijk

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