Heart and blood
- 100

Roughly how many times a day does an adult heart beat?
- 200
What is the body's thickest artery called?
- 300
How many liters of…
In the game - 400
How many blood groups…
In the game - 500
What helps…
In the game
Weird & wonderful
The “Weird facts about the human body” quiz — Weird & wonderful. It has 25 questions in five categories: Heart and blood, Brain and nerves, Bones, Eyes and skin, Body records. Questions get harder as the points go up, from 100 to 500.

The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.

Roughly how many times a day does an adult heart beat?
What is the body's thickest artery called?
How many liters of…
In the gameHow many blood groups…
In the gameWhat helps…
In the gameHow much does an adult brain weigh?

Which cells make up the brain?
Which half of the…
In the gameHow much energy does…
In the gameWhich nerve is the…
In the game
How many bones are in the adult skeleton?

Which is the longest bone?
Which bone is the…
In the gameDoes a baby have…
In the gameWhose hand did Röntgen…
In the gameWhich body organ feels no pain?
Which is the body's largest organ by area?
On which do nails…
In the gameHow many millimeters do…
In the gameWhat is unique…
In the gameWhich part of the eye has no blood vessels and takes oxygen straight from the air?
How long did Randy Gardner's sleepless record last?
Which organ…
In the gameIs it possible to…
In the gameHow many times does…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.