1. BELL WORK (Buff Binder): Copy the question below and write your answers:
When you finish, set up your journal page for today:
Page: 78
Date: 3/28/16
Title: Carbon and Nitrogen Cycle
Essential Question: Why are the Carbon and Nitrogen Cycles Important?
What is ecology?

2. Nitrogen Cycle Reading
1. Why do plants and animals need nitrogen? 2. What is nitrogen Fixation and why is it important? 3. How do animals get their nitrogen?
4. How do plants get their nitrogen? 5. What happens to the nitrogen in organisms after they die? 6. How are humans affecting the nitrogen cycle?

3. Amino acids & proteins in organisms
Nitrogen Cycle
N2 in atmosphere
Amino acids & proteins in organisms

4. CHANGING the form of Nitrogen
ADDING Nitrogen
REMOVING Nitrogen
CHANGING the form of Nitrogen
DISRUPTIONS to the Nitrogen Cycle
IMPORTANT TO REMEMBER!!
Fertilizers
Animal waste
Decomposition
Nitrogen-fixing bacteria on legume roots & in soil
Plants take it in, and animals eat the plants
Nitrogen fixation (turning nitrogen into a usable form)
Denitrification (removing nitrates from the soil
Overusing fertilizers
Excessive livestock farming
Crucial to life
Found in DNA & proteins
Makes up78% of our atmosphere
Not usable straight from the atmosphere

5. Carbon Cycle

6. Cole and the Carbon Cycle

7. Fill in your chart…
Look at the arrows on your picture…what ADDS carbon to the atmosphere?
What REMOVES carbon from the atmosphere?
DISRUPTIONS (these are things that keep the cycle from working smoothly)
Burning fossil fuels (taken from the ground)
Deforestation (cutting down trees)
IMPORTANT TO REMEMBER!!
Once carbon is removed from the ground, you can’t put it back!

8. Exit Ticket (on the back of your passport):
Write one way carbon is ADDED to the environment.
Write one way carbon is REMOVED from the atmosphere.
Write one way the carbon cycle can be DISRUPTED.