1. Which of the following statements is false?
A planet must have a round shape
A planet must have an atmosphere
A planet must orbit the Sun
A planet must be clear of similar objects

2. Most dwarf planets orbit in which area of the solar system?
The Asteroid Belt
The Kuiper Belt
The Oort Cloud
The inner solar system

3. Which asteroid is now classed as a dwarf planet?
Ceres
Vesta
Juno
Herculina

4. The dwarf planet Eris is how far from the Sun?
1.2 billion miles (1.9 billion km)
3.9 billion miles (6.3 billion km)
5.2 billion miles (8.4 billion km)
8.7 billion miles (14 billion km)

5. What is the name of Pluto's largest moon?
Titania
Charon
Triton
Hydra

6. What is the largest dwarf planet?
Haumea
Pluto
Eris
Makemake

7. What is the smallest dwarf planet?
Ceres
Eris
Makemake
Haumea

8. Most of the dwarf planets were discovered in which decade?
1950's
1970's
1980's
2000's

9. Which astronomer discovered Pluto?
William Herschel
Gerard Kuiper
Edwin Hubble
Clyde Tombaugh

10. Which spacecraft will visit Pluto in 2015?
New Horizons
Dawn
Messenger
Voyager 1