Experiment 3

Aim : To determine the effect of a catalyst on the rate of reaction .

Instructions :
Write an hypothesis on the effect of a catalyst on the rate of reaction .
Design an experiment to test your hypothesis .
Clearly indicate all variables in the experiment , which variables you are
manipulating and controlling and which is responding .
Indicate the readings you would expect .

Give a brief outline of your theory .

Experiment will be written up as :
Hypothesis :
Aim :
Apparatus :
Method :
Expected Results :
Discussion :

THIS EXPERIMENT WILL NOT BE DONE !!!

SKILL ASSESSED : PLANNING & DESIGNING

MARK SCHEME
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