addition and substitution reaction

hey guys...
i am in deperate need of help...
we did a practical in chemistry class about two weeks ago and tomorrow we need to hand in a report. problem is i was messing around durning the practical and basically have no clue what to do.

Practical outline:
You are required to show the difference in chemical reactivity between alkanes and alkenes and investigate unknown substances in terms of degeree of saturation.

chemicals:
Cyclohexane and Cyclohexene
bromine in CCl(4)
margerine in two types
Minaral Turpantine.

any help as to how to get sarted or what i shoul do would be greatly appreciated!!!
thanx in advance.
me

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