1. Nitrogen Cycle

2. Where have you heard of nitrogen before?

5. Nitrogen Facts Nitrogen is usually in the form of a GAS. The air is 78% nitrogen!

6. Nitrogen is important to us because… It is in DNA!

7. Nitrogen is important to us because… It is in DNA! It is in proteins!

8. Nitrogen is important to us because… It is in DNA! It is in proteins! It helps plants grow!

9. There is a lot of nitrogen in the air BUT… Most living things cannot use that nitrogen. We breathe it in. Then we breathe it out. We can’t do anything with it.

10. How do living things get nitrogen? You are going to become a nitrogen molecule for the next 15 minutes. Your job: Move through the stations as a nitrogen molecule to figure out how living things get nitrogen.

11. Draw your personal nitrogen cycle.

12. The Nitrogen Cycle

13. Your life as a nitrogen molecule. What are three molecules that you were a part of? What are three things that happened to you?

14. Your life as a nitrogen molecule. What are three molecules that you were a part of?

15. Pair-Share What are three things that happened to you?

16. Nitrogen is made usable by: Lightning, volcanoes, forest fires- the heat breaks apart the nitrogen so it can be used. Bacteria- certain bacteria live in plant roots and break apart the nitrogen. Humans- burning fuels also breaks apart nitrogen.

17. Quiz-Trade-Quiz Why is nitrogen important? – Nitrogen is important because it is a part of ____. Where is nitrogen found? – Nitrogen is found in _______________________. What is one thing that can change nitrogen so living things can use it? – One way nitrogen is changed into a usable form is... Repeat above question.

18. Quiz-Trade-Quiz Why is nitrogen important? – Nitrogen is important because it is a part of ____.

19. Quiz-Trade-Quiz Where is nitrogen found? – Nitrogen is found in _______________________.

20. Quiz-Trade-Quiz What is one thing that can change nitrogen so living things can use it? – One way nitrogen is changed into a usable form is...