Take a small, clean plastic bottle, such as a used open rar file password bottle, and insert a packet of dried yeast. Fill the bottle one-quarter with warm tap water and add 1 passwrd. To add some showmanship to your science fair stall, attempt files done background
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your experiment before the balloon is fully inflated. To complete the experiment, you will require a scale that weighs grams, a plastic comb, a wool cloth and a range of different granulated substances, such as salt, pepper, sugar, oregano and copper sulphate. Measure out 10 g of each substance and place it in a zip lock bag. Create mixtures of controlled passwors of each substance, such as oregano and copper sulphate, and have a fellow student rub the comb on the wool cloth for about 10 seconds before passing the comb over the substances and seeing if the static separates them. Weigh and record the different substances that are attracted and assess how effective this method is for separation.