Which Soft Drink Contains The Most Fizz? For A Science Fair Project

As this is for a science fair project it would be much more fulfilling and proper to actually conduct the experiment yourself.

Research suggests that this is very common theme for a science fair project that many other students have had great fun conducting. A good method to start off is to take the time to compare several of the most popular soft drinks to find out which seems to have the most fizz.

It seems that it may be a close call, as many others who have previously conducted this experiment have reported conflicting results. Some say Coca-Cola was the fizziest, while many actually claim this is the least fizzy of the popular soft drinks.

When conducting a science fair project, it is always important to make plenty of notes during your experiment. That way you are sure to have lots of valid points to make when it comes to writing up the findings of the experiment.

Where there is potentially a close result in an experiment, such as in this case, it may be a good idea to conduct the experiment several times and take an average of the results. For instance, one sample of beverage may be fizzier than another depending on age, storage conditions etc. You also need to make the experiment as fair as possible; for instance, all soft drinks should be kept completely undisturbed for at least 30 minutes before testing their fizz. This way they won't have been knocked or shaken around which could give an invalid result.

You will need:

A glass
raisins
clear carbonated soda

Pour some soda into the glass. We want to be sure that it has plenty of fizz left in it, so take a big swallow. Is it fizzy enough? Maybe another swallow, just to be sure. OK, now fill the glass back up with soda and get out the raisins. You had better eat a few of them too, just to be sure they are OK. Now you know one of the reasons I like science so much. Drop a few raisins into the soda. They sink to the bottom. Wow, that was exciting! But wait! Watch for few seconds and you should see something happen.

Some of the raisins suddenly float upwards through the soda. When they reach the top, they sink again. Soon, the raisins are dancing up and down in the glass. What is going on? Watch carefully and you should be able to figure it out.

Did you see what is happening? Tiny bubbles from the soda are forming on the raisins. When a raisin gets enough bubbles on it, it rises to the top. Where are the bubbles coming from? Right! They are coming from the soda. The fizz in the soda is a gas called carbon dioxide. There is so much carbon dioxide dissolved in the soda that it does not take much to cause it to come out. One way to do this is with a small bubble. The surface of the raisin traps tiny bubbles of air when you drop then into the glass. These tiny bubbles collect carbon dioxide from the soda and begin to grow. When the bubbles grow large enough, they lift the raisin. As they reach the top, the bubbles pop and the raisin sinks again. While most of the gas goes into the air, a small amount of the carbon dioxide sticks to the surface of the raisin and it starts all over again.

Ok look! It is definetly root beer cause it has a lot of carbonoxide in it so it causes root beer to fizz

Take a two liter soda and tie a balloon around the top. Then when fizz stops coming in, measure the width of the balloon.

Coca -cola original

Coke

I think coke

I think coca-cola

Coca cola

Pepsi

Coco cola because what else if not sprite or pepsi

I think sprite

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I think coca cola has the most fizz

I think its pepsi

I think coke

I think pepsi

I think it is between pepsi and sprite

PEPSI!100% CORRECT!!!

Mountain Dew

Coca Cola I did this for my science fair project and the result was Coca Cola

Ok guys I just had a question I need an idea for a 6th grade science project its a controlled study and I don't know what to do can you give me any ideas?

Thanks everyone for their input.  I did do the experiment!  My conclusion was Seltzer, coming in second was Dr. Pepper,third Coca-Cola, last was sprite.  The question I pose is :  Is seltzer considered a soft drink ?  I think it is even though it is not flavored, it still has the carbonation.
Interested in taking a poll.  Thanks

I don't know yet but soon to find out.

It is sprite it has least amount of sugar and more room for fizz.

It was a research I did as a projct.

SPRITE IS THE ANSWER I think

Well lets see, I think it is coke because it tastes good especially diet coke. Coke has a lot of carbon dioxide and yeah

Sprite has the most, and why wont you try the science project yourself!

I think sprite

Just so you all know Seltzer is a mineral water.

I'm doing the project!

Mentos peppermint candy and a 2 liter bottle of diet coke works best! Enjoy!