Title	: RATES OF REACTION I

Aim	: To observe the effect of the surface area on the rate 
of reaction .

Apparatus : 
sulphuric acid , magnesium ribbon , water , boiling tubes , 
measuring cylinder , stop watch , 

Directions : 
Take a 12 cm strip of Magnesium and divide it into 3 equal pieces .
Keep the first piece intact   . Divide the second into two equal 
pieces and the third into four pieces . To three boiling tubes add 
40 ml of acid . Then add to each respectively the strips of magnesium .
Record the length of time taken for the magnesium to completely disappear .

Results : 



Questions  : 
Draw a graph of the results .
How does the surface area affect the rate of the reaction ?
Is there another method that could be used to determine the effect of 
the surface area on the rate ?

RATES OF REACTION I

Criteria    :ANALYSIS AND INTERPRETATION

Analysis and Interpretation

Explanations - 7 mks
Graph - 3 mks