Pluto: Planet or Not?

What are the characteristics of planets?

• Celestial bodies that orbit around a star and have irregular shapes

• Celestial bodies that orbit around a star, have sufficient mass to assume a nearly round shape, and have cleared their orbit of other debris.

• Celestial bodies that orbit around a star and have a square shape

• Celestial bodies that orbit around a star and have a flat shape

When was Pluto first classified as a planet?

• 1930

• 1955

• 1800

• 2006

What are some arguments in favor of Pluto being a planet?

• Its irregular shape, its orbit around the Sun, and its lack of moons.

• Its flat shape, its orbit around the Moon, and its possession of asteroids.

• Its triangular shape, its orbit around Mars, and its possession of comets.

• Its spherical shape, its orbit around the Sun, and its possession of moons.

What are some arguments against Pluto being a planet?

• Small size, irregular orbit, location in the Kuiper Belt

• Large size, regular orbit, location in the asteroid belt

• Large size, regular orbit, location in the Oort Cloud

• Large size, regular orbit, location in the asteroid belt

What is the current scientific consensus on Pluto?

• dwarf planet

• planet

• moon

• asteroid

Why was Pluto reclassified as a dwarf planet?

• Size and characteristics did not meet the criteria for a planet.

• Pluto's orbit was too eccentric to be considered a planet.

• Pluto was too far from the Sun to be considered a planet.

• Pluto did not have enough moons to be considered a planet.

What is the main argument against Pluto being a planet?

• It does not have a solid surface like other planets.

• It is not located in the inner solar system.

• It is too small to be considered a planet.

• It does not meet the criteria set by the International Astronomical Union (IAU) for a planet.

What is the main argument for Pluto being a planet?

• It is the largest object in the Kuiper Belt.

• It meets the first two criteria of the definition of a planet.

• It has a moon.

• It has a round shape.