1. No category

DIRECTIONS
All living things need carbon, hydrogen, oxygen, and nitrogen. Plants and animals need nitrogen,
but they can’t use the nitrogen that is in the air--it has to be “fixed” or changed a little first. This is
where the plants, including peanut plants, come in handy! Starting with the yellow dot representing
nitrogen in the air, draw arrows connecting the objects below to complete the nitrogen cycle.
2.Plant roots to peanut plant leaves
3.Peanut plant leaves to cow
4.Cow to bacteria in soil
5.Bacteria to atmospheric nitrogen