Today we will be completing more of the assignment, looking at the merit and distinction criteria. With your assignment sheets, use the following websites to help you acheive the criteria for task 3 and 4:
Task 3 - Basic information - http://chemistry.about.com/od/chemistryfaqs/f/aircomposition.htm
Elements, Compounds, mixtures - http://www.chem.purdue.edu/gchelp/atoms/elements.html
Tests for gases - http://www.gcsescience.com/itestoxygen.htm , http://www.gcsescience.com/itestcarbondioxide.htm , http://www.gcsescience.com/itestnitrogen.htm
Task 4 - You can asnwer this on the piece of lined paper we started in class last lesson.
Task 5 - http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/atomic/differentsubrev5.shtml
http://www.elmhurst.edu/~chm/vchembook/143Aioniccpds.html . Make sure you compare metal elements to their compounds.
