Title	: RATES OF REACTION II

Aim	: To observe the effect of concentration on the rate of reaction .

Problem Statement : How does concentration affect the rate of reaction ? 
Design an experiment to prove your hypothesis . 

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


Questions  : 
Draw a graph of the results .
How does the concentration affect the rate of the reaction ?
Is there another method that could be used to determine the effect of the 
concentration on the rate ?
If you plot a graph of conc. vs. 1/time what would that determine ?


Criteria    : PLANNING & DESIGNING ; ANALYSIS AND INTERPRETATION

Analysis and Interpretation

Explanations - 	5 mks
Conclusion - 	2 mks
Graph - 		3 mks

Planning and Designing

Statement of Hypothesis			2 mks
Aim						1 mk
Apparatus & Material			3 mks
Method					4 mks
	Logical sequence
	Language
	Steps
	Tense
Variables					2 mks
Data						3 mks
	All data
	Missing 1 essential
	Missing 2 or more essential
Predicted Results				2mks
Limitations / Assumptions / 		3 mks
Sources of Errors