How to Play
The 16 words you can see can be divided into 4 groups of 4 words each.
All puzzles are themed on climate change and environment.
Select four items that belong to the same group/category and tap Submit to check your answer.
You can click on hint to see what the category is.
You can make up to 4 mistakes!
Category Examples
Season: Summer, Winter, Spring, Autumn
Carbon ____: Tax, Credit, Sink, Cycle
Each puzzle has exactly one solution. Watch out for words that seem to fit more than one group!
Each group is colour-coded, revealed as you solve
Straightforward
Medium
Tricky
Devious