nitrogen+cycle

nitrogen cycle

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Without nitrogen, we would not survived.

try the nitrogen cycle links below:

nitrogen cycle animation 1

nitrogen cycle animation 2


 * for the Nitrogen Cycle: **


 * 1. What living organism in the soil is responsible for breaking down nitrogen and making it usable for plants to take in and grow? **

**The bacteria is responsible for breaking down the nitrogen and making it usable for plants to take in and grow.**


 * 2. If plants can't take nitrogen in from the air, how does the nitrogen come from the air to the soil? **

It comes from dead plants and animals.


 * 3. Nitrogen is a waste product, but it is an important element found in living things. What is that compound? Watch the Carbon/Nitrogen cycle movie carefully (it is found on the carbon page) **

**So the nitrogen can get to the plant easier.**
 * 4. Why do we make sure to break down the soil and rake it in the garden rather than packing the soil down with the shovel? **

We do this so plants can breathe.


 * 5. How much nitrogen did we find in our gardens? **


 * 6. How could we increase the amount of nitrogen in our garden soils? **


 * We can increase the amount of nitrogen in our garden soils by having more bacteria in our soil. We could add fertilizer, organic matter, or manure. **