2026-03-31

The Super Sniffer

Problem illustration

Dogs have a "nose-brain" that is 40 times larger than ours! They can even smell one tiny teaspoon of sugar inside two giant Olympic-sized swimming pools. Their sense of smell is so powerful that a trained dog can even find orca whale poop floating in the ocean from more than a mile away! Learn more!

Wee Ones

A dog can smell things that are very, very far away. Is it likely or unlikely that a dog can smell a yummy treat hiding in your pocket from across the room?

Little Kids

A dog can tell which way a person is walking by sniffing just 5 steps. If 3 of those steps were on the grass and the rest were on the sidewalk, how many steps were on the sidewalk?

Big Kids

The part of a dog's brain used for smelling is 40 times larger than ours. If our "smelling brain-spot" was a square that was 3 centimetres long on each side, what would be the distance all the way around it (the perimeter)?

The Sky's the Limit

Dogs have about 300,000,000 (300 million) scent receptors in their noses. Can you write this large number in scientific notation?