To perform this experiment we need a boiled egg, bark, matches and a bottle with his mouth wider. First light match, is inserted in the bottle and let them burn. Bark boiled egg and place over the mouth of the bottle. After put the eggs, match is extinguished, and the eggs begin to pass the mouth of the bottle until it reaches the. Because the eggs covered the mouth of the glass to match the fire consumed all the oxygen in the bottle, and after it was extinguished. Explanation: Because of the lack of oxygen pressure and body weight decreases with pressure acting on the outside glass egg that "leaking" through the mouth bottles.
Breje Diana, Festeu Cristina, Hara Paula, Vidrasan Emanuela
Scoala Gimnaziala "Gheorghe Lazar" Zalau, Romania