Aim of Experiment To deduce which type of washing powder is the best in removing stains .

2. Aim of ExperimentTo deduce which type of washing powder is the best in removing stains. • B) Brief Description of your ExperimentPut chilli on rags and scrub off using toothbrush. • C) Apparatus you used8 pieces of cloth, a toothbrush, a basin of water, 2 packets of chilli sauce and 2 types of washing powder, Dynamo and Vanish. • D) VariablesIndependent varible-Type of washing powder.Dependent varible-No. of scrubs.Control varible-8 pieces of cloth,amount of washing powder. • E) Method • 1)Squeeze chilli onto rags. • 2)Pour washing powder on stains. • 3)Scrub off with toothbrush. • 4)Count the number of scrubs. • 5)Record observation.   • F) ResultsDynamo removed the stain and we could hardly see it, while for Vanish, it left a deep stain. • G) ConclusionDynamo is the most effective in removing stains. • H) Evaluation • We use different types of washing powder on two rags and repeated the experiment.It is to confirm our results .     • Group Members: Amali, Daphne Leo, Amanda Heah, Chen Xing Yu, NingJian • Appendix: • 1) Survey Result • 2) Videos/Photos