Which questions?
How many questions?
Time per question?
Pick at least one question type to play with.
Game over!
0 / 0
Runs entirely in your browser — no data is sent anywhere.
About this carbon cycle game
This free GCSE earth science game covers the processes that move carbon through the environment — photosynthesis, respiration, combustion, decomposition and fossilisation — plus vocabulary like carbon sink, greenhouse gas and deforestation. Choose which question types to include, set your question count and time limit, then see how many you can get right.