[For Elementary School Students] Which Is Bigger? Quiz Collection — Let’s Compare Sizes

soccer ball

An officially regulated adult soccer ball has a diameter of about 22 cm, while a volleyball is about 21 cm. Although they are very similar in size, a soccer ball is made to be about 200 grams heavier.

Closterium (a genus of desmids; commonly called 'micrasterias' or 'crescent desmid')

Euglena are about 0.07 mm long, while Closterium measure 0.4 mm. Both often appear as microorganisms in science questions, so take this opportunity to remember them!

flute

A flute is about 70 cm long, and a soprano recorder is about 30 cm. The flute is held sideways relative to the body and played as if blowing across the mouth of a plastic bottle. It is a beautiful instrument characterized by a clear, refreshing tone.

Earth

The Earth's diameter is about 12,756 km, and Venus's is about 12,103 km, so Venus is roughly 95% the size of Earth. In addition to size, its mass is also similar at 0.82 times that of Earth, and its gravity is of a similar strength.

10,000-yen bill

The width of a 1,000-yen bill is 15 cm, and the width of a 10,000-yen bill is 16 cm. Incidentally, the height is standardized at 7.6 cm for all bills. It's interesting that while the denomination and size are proportional for banknotes, that's not the case for coins.

Sapporo TV Tower

While the Sapporo TV Tower is 147 meters tall and Kyoto Tower stands at 131 meters, comparing the observation decks shows that Sapporo TV Tower’s is about 90 meters high, whereas Kyoto Tower’s is 100 meters—meaning Kyoto Tower’s observation deck is higher.

brown bear

While the giant panda’s body length is about 150 cm, the brown bear’s can reach nearly 3 meters at maximum. In Japan, brown bears inhabit Hokkaido, and some individuals are said to weigh as much as 500 kg.