Interactive field trip · game 1 of 4
Where does the nitrogen atom go?
Guide one nitrogen atom through the cycle. Choose the next stop in its route from air to life and back. No lab coat required; microbes handle the difficult chemistry.
Stop 1 of 6
Where is our nitrogen atom starting?
Choose the correct stop to continue.
Science note: biological nitrogen fixation converts N₂ into usable nitrogen forms; plants can take up nitrogen compounds such as ammonium and nitrate. USDA ARS: biological nitrogen fixation · USGS nitrogen-cycle animation.
Have a big idea for n2.si?
We expect a substantial offer. Low bids will not be considered or answered.
Give the offer enough momentum to complete the nitrogen cycle; a low bid gets recycled straight back to its sender.
Answer two questions to open the English form →