Explore the wonders of biology, chemistry, physics, and the natural world. How well do you know the science behind everything?
What planet is closest to the Sun?
Answer: Mercury
What is the powerhouse of a cell?
Answer: The mitochondria
What is the Chandrasekhar limit?
Answer: The maximum mass of a stable white dwarf star (about 1.4 solar masses)
Questions from all categories appear during gameplay. The more you play, the more categories you'll encounter.