as soon as we collected the soil samples we took them to the commission too and dry them so that almost first goes away with and each soul sample into finer powder to get rid of little pieces of plastic or or grass or whatever and then weighed each sample to know how much we are using the next step. in. the next step was to add acids to the soil to perform a reaction that is called as a digestion and. this reaction allows the have met has to come out into solution and then we can take the solutions to use and the final stage of the process which is analysis and date collection so we take those solutions feed them into a detector which in our case was an atomic absorption spectroscope and then detect the cause a trace in the heavy metals program. this is how we determine the levels of the five heavy metals which shows.