IMO Practice Test — Plants Around Us
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Which sentence about plants is TRUE?
Plants are made in a factory
Plants are non-living
Plants never need water
Plants are living and grow
Explanation: Plants are living things that grow and need water.
Question 2 of 6
medium
A bean seed in damp cotton wool will first grow a…
Flower
Root, then a shoot
Fruit
Big tree at once
Explanation: First a root grows down, then a green shoot grows up.
Question 3 of 6
hard
A plant is given water but kept in complete darkness. It will most likely…
Become weak because it cannot make food
Grow tall and strong
Make lots of fruit
Turn into a tree quickly
Explanation: Without light, leaves cannot make food, so the plant weakens.
Question 4 of 6
medium
A plant makes baby plants from…
Plastic
Stones
Seeds
Glass
Explanation: New plants grow from seeds.
Question 5 of 6
medium
A potato grows under the ground. Which part of the plant do we eat as a potato?
An underground stem
A flower
A fruit
A petal
Explanation: A potato is a special underground stem that stores food.
Question 6 of 6
hard
If a plant had no roots, what would happen?
It could not drink water or stand
It would grow faster
It would fly
Nothing would change
Explanation: Without roots the plant could not drink water or hold itself up.