Size Comparison Games
7 higher-or-lower games about size and scale. Each round shows two things and the first one’s measurement; say whether the second is larger or smaller (higher or lower for heights). One wrong answer ends the run.
Scale of the Universe ranges over 69 objects, from Proton to Observable universe; Country Size uses 194 countries; Building Heights uses 32 buildings; Mountain Heights uses 32 mountains; Planet Size Comparison lines up 41 planets, moons, dwarf planets and asteroids, from Bennu to the Sun; Star Size Comparison covers 17 stars, a white dwarf and a neutron star, from 25.4 km to over a thousand times the Sun’s width; Animal Size Comparison measures 52 animals, from the Panamanian golden frog to the blue whale.
Every game is free, needs no account and has no timer, and each one explains its rules and sources below the board.
All 7 size comparison games
Scale of the Universe
From tiny particles to galaxies. Which is larger?
Country Size
Which country covers more ground?
Building Heights
Which building is taller?
Mountain Heights
Which mountain is higher?
Planet Size Comparison
Planets, moons and asteroids. Which is bigger?
Star Size Comparison
From a neutron star to red supergiants. Which is bigger?
Animal Size Comparison
From a golden frog to the blue whale. Which is bigger?



