Why is Pluto not a planet anymore?Version en ligne This video aims to expand students´ vocabulary about the history of Pluto and explains why it is not a planet anymore. Please, watch the video and answer the questions in the order in which they appear. par GEOFFREY GALAN 1 Up until the year 2005, which one was the smallest planet in our solar system? a Pluto b Mercury c Uranus 2 Until what year did the science books teach us that there were nine planets? Select one or more answers a 2003 b 2005 c 2006 d 2015 3 What is a celestial body? a An unknown object that is in outer space. b An object visible in the sky, such as a planet. c A body of mass floating in the Universe. d 2015 4 In what year was Pluto discovered and what was the name of the astronomer who discovered it? a 1930, Tom McClyde b 1920, Claude McLoid c 1930, Clyde Tombaugh d 1940, Clyde Tombaugh 5 What happened in a warm day on August 2006? a Some scientists met at a University to talk about global warming. b A few scientists declared Pluto as NOT A PLANET. c A few astonishing scientists created a new name for Pluto. d 1940, Clyde Tombaugh 6 What are the three essential criteria that a celestial body needs to fulfill to be A PLANET? a 1. It needs to revolve around the Sun. 2. It needs to have a lot of gravity. 3 It needs to be spherical in shape. b 1. It needs to revolve around the Sun. 2. It needs to have a lot of gravity. 3 It needs to be rectangular in shape. c 1. It needs to revolve around the Sun. 2 It needs to be spherical in shape. 3. It needs to have the area around its orbit clear of asteroids and dwarf planets. d 1940, Clyde Tombaugh 7 Which one is the criterion that Pluto did not meet? a Criterion 3, It has not cleared the neighborhood objects around its orbit. b Criterion 2, It does not have a spherical shape. c Criterion 1, It does not revolve around the Sun. d 1940, Clyde Tombaugh 8 What is a Dwarf Planet? a A planet that orbits into other planets' orbits at the same time. b A planet that is very little and that does not revolve around the sun. c A celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such. d 1940, Clyde Tombaugh 9 After being on Team Planet, Pluto was moved to another team. What is the name of this new team? a Team Brave Planet b Team Celestial Bodies c Team Dwarf Planet d Team The little Musketeers 10 What was the name of the little girl who suggested the name Pluto in 1930? a Anastacia Barney b Venetia Burney c Venice Bradley d Team The little Musketeers 11 What is hidden under Pluto´s icy surface? Select one or more answers a Ice volcanos b Ice River c Ocean d Artic water Explanation 1 A lot of us grew up reading about the old nine planets. But later, Pluto was delisted from its status. 2 Look at the picture of the commonly known planetary system up until 2005. Then compare it to the other picture of our new planetary system. 3 Look at the picture of the commonly known planetary system up until 2005. Then compare it to the other picture of our new planetary system. 4 Look at the picture of the commonly known planetary system up until 2005. Then compare it to the other picture of our new planetary system. 5 Pluto was declared as NOT A PLANET and downgraded to a Dwarf Planet because it did not meet the three required criteria to be called a PLANET. 6 Pluto was declared as NOT A PLANET and downgraded to a Dwarf Planet because it did not meet the three required criteria to be called a PLANET. 7 Pluto was declared as NOT A PLANET and downgraded to a Dwarf Planet because it did not meet the three required criteria to be called a PLANET. 8 Pluto was declared as NOT A PLANET and downgraded to a Dwarf Planet because it did not meet the three required criteria to be called a PLANET. 9 Pluto was declared as NOT A PLANET and downgraded to a Dwarf Planet because it did not meet the three required criteria to be called a PLANET. 10 She was eleven years old at that time. 11 She was eleven years old at that time.
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