2. Pluto was discovered in 1930. It was classified as a planet. In 2006, scientists agreed that Pluto is
not a planet.
a) The diagram below shows our solar system.
Pluto
Neptune
Earth
Venus
(Sun
Mercury
- Mars
Jupiter
Uranus
Saturn
not to scale
i) From the diagram, what supports the idea that Pluto is a planet?
(1 mark)
ii) From the diagram, what supports the idea that Pluto is not a planet?
(1 mark)
Answers: 2
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