General Knowledge
Heavier or Lighter Quiz
Can you guess which weighs more? Prepare to be shocked by the answers.
Can you guess which weighs more? Prepare to be shocked by the answers.
A typical cumulus cloud weighs approximately 500,000 kg — as much as 100 elephants floating overhead. Our intuitions about weight are surprisingly unreliable, and this quiz is designed to exploit every one of those blind spots with 50 mind-bending weight comparisons.
Each round presents 10 randomized multiple-choice questions drawn from a pool of 50, so every playthrough is different. You get instant feedback with explanations after each answer, plus a shareable score at the end.
You'll discover jaw-dropping weight facts about animals (a blue whale's tongue weighs as much as an elephant), everyday objects, famous structures, the human body, food, and the most counterintuitive comparisons in science. Did you know the entire internet weighs only about 50 grams — the weight of the electrons that store all its data?
A typical cumulus cloud weighs approximately 500,000 kg (500 tonnes), equivalent to about 100 elephants. The water droplets are spread across a massive volume and are so tiny they float on rising air currents, which is why clouds appear weightless despite their enormous mass.
The blue whale is the heaviest animal ever to have lived, weighing up to 200 tonnes (200,000 kg). Its tongue alone weighs about 2,700 kg (roughly the weight of an elephant), and its heart weighs approximately 180 kg. No dinosaur ever discovered came close to this mass.
Saturn's average density is 0.687 g/cm³, which is less than water's 1.0 g/cm³. In theory, if you could find a body of water large enough, Saturn would float. However, this is a simplification — Saturn's core is far denser than water, and the planet would likely break apart rather than bob like a bath toy.
Last updated: April 2026