IMO Practice Test — Our Body & Senses
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
In the dark you find a switch by feeling the wall. Which sense helps?
Smell
Sight
Taste
Touch
Explanation: In the dark, touch helps us feel our way.
Question 2 of 6
hard
Eating with dirty hands can make us…
Taller
Strong
Sick, as germs go inside
Cleaner
Explanation: Germs on dirty hands can enter the body and make us ill.
Question 3 of 6
hard
Why is eating different kinds of food better than one food only?
One food is tastier
Each food gives the body something it needs
It costs less
It looks better
Explanation: A variety of food gives the body all it needs.
Question 4 of 6
hard
A person who cannot see can read special raised dots called…
Colours
Pictures
Braille (by touch)
Sounds
Explanation: Braille uses touch to read raised dots.
Question 5 of 6
hard
Why is a meal with rice, dal and vegetables better than only sweets?
It is more colourful
It gives the body many things it needs
It costs more
It tastes worse
Explanation: A balanced meal gives the body all it needs to grow.
Question 6 of 6
medium
Why are our joints, like the elbow, useful?
They make sound
They give colour
They let body parts bend and move
They store food
Explanation: Joints let our arms and legs bend.