Dwarf Planets

Which of the following are criteria for a planet?

• orbit a star

• have cleared the area of its orbit of the smaller objects

• be big enough that its own gravity causes it to be shaped as a sphere

• not be a moon

• not have cleared the area around its orbit of smaller objects

Tags

NGSS.MS-ESS1-3

In ____, the International Astronomical Union defined a planet.

Tags

NGSS.MS-ESS1-3

Why are asteroids and the dwarf planet Ceres different (from the ck-12/presentation)?

• they don't reside in the asteroid belt

• one has enough mass for gravity to causes it to be shaped like a sphere

• they are rocky and icy bodies

• they orbit the sun

What is Pluto's approximate diameter?

• 2,400 meters

• 2,400 miles

• 2,400 kilometers

• 2,600 miles

Tags

NGSS.MS-ESS1-3

Pluto resides in the Kuiper Belt with ___ million other objects.

Tags

NGSS.MS-ESS1-3

Makemake is the _____-_______ dwarf planet discovered so far.

• fifth-largest

• fourth-largest

• second-largest

• third-largest

Makemake's approximate diameter is between ____ and ____.

• 1,300 and 1,900 kilometers

• 1,200 and 1,800 kilometers

• 1,200 and 1,800 miles

• 1,500 and 1,900 miles

Tags

NGSS.MS-ESS1-3

Name one of the ices that Makemake is made of.

Tags

NGSS.MS-PS1-1

Eris has a mass of about ___ more than Pluto

• 44%

• 27%

• 25%

• 37%

Tags

NGSS.MS-ESS1-3

What year was Eris discovered?