CLICK HERE FOR BLOGGER TEMPLATES AND MYSPACE LAYOUTS »

Thursday, December 3, 2009

Assignment 1
Designing a hypothesis
.

A hypothesis for any experiment has to be designed in accordance to the objective you are trying to achieve. In the case of this experiment you want to find out the effects of certain parameters on the ability of plants to produce starch.

Things to consider:
Should your hypothesis be very strict?
(eg. increasing glucose concentration would result in increased starch storage )the disadvantage to a strict hypothesis is that the possibility of your actual experiment disproving your hypothesis to be very high.

A generic hypothesis would be : Increasing glucose concentrations will have a direct effect on starch storage capacity.

Can your experiment be designed to prove or disprove your hypothesis?
Depending on the apparatus given you might want to consider revising your hypothesis.(eg. the effect of different carbon numbers in carbon source will affect the starch storage rate)if there is no apparatus or indication in measuring the variables, a hypotesis should not be designed in that way .
Similarly you want to make sure that the experiment you design will minimize errors or at least allow them to be controlled.

How many hypothesis per experiment?
Ideally one experiment should be constructed to prove or disprove only one hypothesis. So one experiment should be designed for every hypothesis. Each hypothesis should be written as a separate sentence. Bear in mind it is still possible to have a multiple hypotheses proven/ disproven by a single experiment. It really depends on the overall design of the experiment.

next....Designing an experiment

0 comments: