Please can you give me what are the products , the colour of the flame, how does it react when :
1- Zinc reacting with oxygen
Zinc reacting with air
2- Iron filings with oxygen
Iron filings with air
3- Copper reacting with oxygen
Copper reacting with air
4- Magnesuim reacting with oxygen
Magnesuim reacting with air
From now on, please put the SUBJECT in the Subject line. Then the right teachers will get to your question faster.
Since this is not my area of expertise, I searched Google under the key words "flame test elements" to get these possible sources:
http://webmineral.com/help/FlameTest.shtml
http://en.wikipedia.org/wiki/Flame_test
http://chemistry.about.com/library/weekly/aa110401a.htm
http://chemistry.about.com/od/chartstables/Chemistry_Charts_Tables.htm
Although it has been decades since I have taken chemistry, the elements would result in their oxide (e.g., zinc oxide).
I hope this helps. Thanks for asking.