Which planet is known as the Red Planet?
In what year was penicillin discovered?
1911 | 1904 | 1890 | 1929
What nationality was Antoine Becquerel, the scientist who discovered radioactivity?
What radioactive element was discovered by Pierre and Marie Curie?
Larissa is a moon of which planet in our solar system?
What is Superman's home planet?
Which planet is closest to the Sun?
What is the second planet from the Sun?
