How it works
Spin, and the wheel lands on a question about the Solar System – which planet is the red one, how many moons Mars has, who was first in space. Pick the answer from four.
Your score and your run
Every right answer adds to the Score, and the run counts how many you got right in a row. Best run remembers your record on this device.
Pick the topics
Three sets: which planet it is, the numbers of the Solar System, and space beyond the planets. Play one set or all three.
Easier or harder
Under Quiz settings choose how many Answers to choose from, and switch on Take the ones I got right off the wheel to work through the whole set until nothing is left.