A. Look at the picture and answers these questions.
- a. How many planets are there in the solar system?
- b. Do you think that Pluto is a planet?
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B. Listen to the audio and complete the sentences with the correct words or phrases.
- Pluto was kicked out from the group of in 2006.
- Pluto is made of and ice.
- Pluto takes about 250 years to complete its full orbit around the Sun.
- Eris was in 2005.
- The scientists created a new category as planet.
C. Listen to the audio again and put a tick mark (√) under True or False., a. Pluto is smaller than the Moon. b. The NASA New Horizon Spacecraft took almost 12 years to get very close to Pluto. c. Eris is about the same size as Pluto. d. The scientists disqualified Eris as a planet. e. Pluto is a member of the dwarf planet club. Then: D. Why is Pluto not a planet? Give your reasons.