Science Fair

HYPOTHESIS?In this science experiment, we showed how to make raisins swim up and mountain in a jar, using nothing more(prenominal) than a some things we found in our kitchen. Overview When baking club pa is added to a acetum solution, a gas is produced and this causes small bubbles to form. This is called a chemical reaction.  This reaction between the baking soda and the acetum produces a light speed dioxide gas, weewee, sodium and acetate ions which be dissolve in the water. It is this carbon dioxide gas, that causes the bubbles to form. Bubbles are little pockets of atmospheric state or gas. As these bubbles are filled with gas, they are igniter or slight(prenominal) dense than the vinegar solution and will why float to the top of the liquid. An acid is a liquid that is normally sour in taste, and has a pH level of less than 7.  Materials 1 large glass jar (an empty shrink from nut butter jar will do) ½ a cupful of vinegar 2 tablespoons of baking so da A fall in full of raisins Tap water Procedure conform to unrivaled quarter of the jar with vinegar and the top with wiretap water. bunco the solution with a spoon. Add the baking soda and stir. appreciation for a few minutes until bubbles start to form.

If the bubbles fatiguet form, try adding more vinegar. Drop in a few raisins, one at a time, and observe.  Observation The raisins drop down to the bottom of the jar when they were first dropped into the jar. Soon the raisins will affect to the top of the jar. They stayed there for a while, then started to sink again. resultant The bubbles of carbo n dioxide gas stuck to the raisins and helpe! d carry the raisins up to the top. When they reached the top of the surface, the bubbles disappeared and the raisins loosed the hold out of the bubbles and sink back to the bottom of the liquid, as the raisins are denser than the bar of water displaced.If you want to get a full essay, hostelry it on our website: OrderCustomPaper.com

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