Jason+&+Ryan

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AIM Our aim is to find out what egg shell dissolves the fastest in ether sprite,coke,diet coke,ginger beer or water that is the control. We used egg shells because they are made of the same things in your teeth.

HYPOTHESIS I think coca cola will dissolve the fastest because it has more sugar and carbon dioxide then diet coke,sprite,ginger beer and water. Darker liquids make things usually dissolve the fastest.

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EQUIPMENT egg shells four or more fizzy drinks plastic cups(maybe use two together so its stronger)

METHOD 1.Crack the egg 2.Now tip the egg out 3.Then wash the egg shell out with water 4.Now pour the fizzy into the plastic cups(maybe put two cups in each other so its more stronger) 5.Then crush the egg shells in to the fizzy. 6.Then you have to wait and see what will happen.


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 * sprite || most bubbles on egg shells || bubbles on top & sides & some egg shell on the top but most are on the bottom || Got scum on top and sides || more inside egg shells bits coming off and scum on top || bits of white floating in the middle and bits of inside egg shell are coming off ||  ||   ||   ||   ||
 * coke || bubbles around sides || less egg shells || a few egg shells and some scum || eggshells turn black and scum is black || bubbles on surface ||  ||   ||   ||   ||
 * diet coke || very flat || a weird rainbow colour on the top || some scum and feels yucky || drink turned light brown and scum at top and bits of egg shell floating || orange and green scum on suface ||  ||   ||   ||   ||
 * water || nothing happened yet || a bit smellier || smells || inside of egg shell coming off || bits of inside egg shell coming off ||  ||   ||   ||   ||
 * ginger beer || bubbles have mosty gone || weird stuff floating in the middle || yellow drink and egg white floating in the middle || both brown and white bits and floating and smells grose and completly no scum || brown egg shell coming off ||  ||   ||   ||   ||

Processing We will present our results with a table showing how many egg shells are left over.

Conclusion We learned that the white drinks worked the best on the egg shells because the sprite came first and the ginger beer came second. Our hypothesis was wrong. In the experiment the inside lining of the egg shell came off then the shell came off. We think it happened because the fizzy drink got in the egg shell and started to push it apart. That means that the outside of the egg shell is easy to pull off. We did the experiment because we like fizzy drink and wanted to know what one was the worst for you. The egg shell in the sprite was pited and it stinked. I found this information on the internet about why fizzy drinks make teeth and egg shells dissolve. //"Parents need to understand that while high levels of sugar cause decay, it is the acidity of certain products that causes erosion.// //"While drinking 'diet' versions of fizzy drinks reduces sugar consumption, these products are very acidic and can still cause erosion.// //Erosion, caused by acidic substances, is a wearing away of the enamel coating of teeth.// //Decay, caused when the sugar in food and drink reacts with bacteria in plaque, attacks the areas between or on top of teeth//." We can conclude that the water that we used was tank water which must be acidic because it also caused some erosion of the egg shell. Reflection We did the experiment ok but we should of kept the egg shell and the drink instead of throwing it out.We learnt that the sprite is best at dissolving egg shells and next, ginger beer. Our next experiment will be the effect of fizzy drink on the whole egg like the experiment on you- tube below.

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