بحث حول تجربة علمية للسنة الثانية ثانوي الشعب العلمية تجربة علمية عن كشف النيكوتين في السجارة من اعدادي The experience How we can search about existence of the Nicotine in cigarettes: The Instruments: Ø Plastic Bottle Ø Cotton Ø Cigarette Ø Sulfur The Hypotheses We can do that by a simple experience and by using that simple Instruments The experience We close the head of the bottle by the cotton then we burn the cigarette in the head of the bottle (WP the cotton), then we press the bottle in order to bun the cigarette; here we observe that the cotton is colored by ye how color that substance is called «Nicotine». The Final Results 1- When we bean one cigarette cotton’s color changes to ye how. 2- The cigarettes are very dangerous for the health of mankind because it contain poison «Nicotine». [/SIZE] التجربة عنوانها الكشف عن النيكوتين في الدخان مجربة وناجحة زهرة جبل قطيان