IMO Practice Test — Plants Around Us
6 Questions • 12 min • Olympiad level
12:00
Question 1 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 2 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 3 of 6
hard
Why is the life of a plant called a 'cycle'?
It goes backwards
It happens only once
New seeds grow into plants that make seeds again
It never changes
Explanation: Seeds grow into plants that make new seeds — it repeats, like a cycle.
Question 4 of 6
medium
Which of these foods does NOT come from a plant?
Rice
Apple
Milk
Carrot
Explanation: Milk comes from animals; the others come from plants.
Question 5 of 6
medium
Why do we keep house plants near a window?
To stop them growing
To keep them cold
To hide them
To give them sunlight
Explanation: A window lets in sunlight, which plants need to make 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.