Moons
Facts
Location
Why it's not a Planet
Observation/Names
100

What is Pluto’s largest moon? (It's nearly half its size.)

Charon

100

Pluto is only about two-thirds the size of______

Earth's Moon

100

Pluto revolves around this star

The Sun

100

Pluto was reclassified as a dwarf planet in this year

2006

100

Pluto was named after the Roman god of this realm

The Underworld

200

This Pluto moon is described as jelly-bean shaped

Nix

200

What is one year on Pluto equivalent to?

248 Earth years

200

Is Pluto closer to Venus or Mercury?

Venus

200

This organization removed Pluto from the list of planets

The International Astronomical Union

200
Why was Pluto named after the underworld god?

It is dark and distant

300

This moon is known for its rubber-duck shape.

Hydra

300

Pluto’s reddish-brown surface comes from these organic compounds formed by radiation.

Tholins

300

Pluto is a major member of this icy outer-solar-system region

Kuiper Belt

300

What year was Pluto discovered in?

1930

300

Earth’s best telescopes couldn’t observe Pluto well, leading to the launch of this spacecraft

New Horizons

400

At only 4.5 miles wide, this is Pluto’s smallest moon.

Styx

400

Pluto is approximately 3.8 billion miles from the Sun. (TRUE or FALSE)

FALSE (3.7 billion)

400

Pluto used to be considered the __ planet from the Sun

9th

400

Clearing the neighborhood requires a planet to be dominant through what force?

Gravitational

400

The slideshow states that telescopes struggle to observe Pluto because of ________.

Extreme distance

500

Name all 5 of Pluto's moons

Charon, Nix, Hydra, Kerberos, and Styx

500

Radiation interacting with which two gases creates the tholins on Pluto?

Methane and nitrogen

500

Pluto’s orbit lies beyond the orbit of this planet

Neptune

500

What key requirement does Pluto fail for planethood?

Clearing its orbit

500

Pluto is named after the Greek god of the underworld. (TRUE/FALSE)

FALSE (Roman