what science fair project can i do with coke? grade 8 ish lvl?

Question

what science fair project can i do with coke? simply and easy fast

something fast and easy
umm i need to be something no one has done before or few ppl have done it

Answer 1

How to Make a Soda Bottle Volcano
Words cannot begin to describe the awesome eruption that is created from mixing Mentos candy and soda. Eruptions of up to 18 feet are possible if this technique is done correctly. Steve Spangler shares this experiment from his television show... and a link to one of the first viral videos.
Steps

1. Allow your soda to reach room temperature. Keep the lid on, just leave it on the counter for a few hours before this is attempted. If you're in a hurry, use one of the bottles taken from the shelf of the grocery store, as it will already be close to room temperature.
2. Go outside to the middle of an abandoned field or a huge lawn. Bring a roll or box of Mentos (candy mints) and a 2-liter bottle of soda. Either diet or regular soda will work for this experiment, but diet soda erupts higher and is less sticky when you're cleaning it up.
3. Open the bottle of soda carefully. Position the bottle on the ground so that it will not tip over.
4. Unwrap the whole roll of Mentos. The goal is to drop all of the Mentos into the bottle of soda at the same time (which is trickier than it looks). One method for doing this is to roll a piece of paper into a tube (like a cardboard toilet paper roll) just big enough to hold the loose Mentos. Put a card under the roll and on top of the bottle top, so you can just pull off the card and the candies will all drop in at once.
5. Warn the spectators to stand back.
6.
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Drop all of the Mentos into the bottle at the same time and then move out of the way as fast as you can.
7.
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Watch the soda eruption. It's just like fireworks on the 4th of July. The spectators cheer in a chorus of ooohs and ahhhs. Someone yells out, "Do it again" and you do.

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Tips

* Diet soda just works better than regular soda. Some people speculate that it has something to do with the artificial sweetener, but the jury is still out. Another speculation is that since the artificial sweetener takes up less mass than sugar does, there's more carbonated water in diet soda than regular soda. Most importantly, diet soda does not leave a sticky mess to have to clean up.
* Getting all the mentos to fall in the bottle at the same time is harder than one would think. If done incorrectly the volcano will only rise a few inches or so. Practice getting the mentos to drop simultaneously a few times before wasting your bottle of diet soda.
* Why does this work? While there is considerable debate over how and why this works, here's the hypothesis: Water molecules strongly attract each other, linking together to form a tight mesh around each bubble of carbon dioxide gas in the soda. In order to form a new bubble, or even to expand a bubble that has already formed, water molecules must push away from each other. It takes extra energy to break this "surface tension." When you drop the Mentos into the soda, the gelatin and gum arabic from the dissolving candy break the surface tension. Each Mentos candy has thousands of tiny pits all over the surface. These tiny pits are called nucleation sites - perfect places for carbon dioxide bubbles to form. As soon as the Mentos hit the soda, bubbles form all over the surface of the candy. Couple this with the fact that the Mentos candies are heavy and sink to the bottom of the bottle and you've got a double-whammy. When all this gas is released, it literally pushes all of the liquid up and out of the bottle in an incredible soda blast.
* If you're having trouble getting all of the Mentos into the bottle at once, try placing an index card over the mouth of the bottle and placing your paper tube on the card. Then line up the tube over the hole and slide the card out.
* Don't use a three liter bottle, because the neck is too large. It results in about a six inch tall fountain.
* If you're still bored after this, try doing this in your mouth. Have a sink nearby.
* An alternative thing to do is drill a small hole through the cap, put a string through and tie 4 mentos to the end of the string that will go into the soda, then you close the cap almost completely, just a little loose, shake the soda and toss it onto the ground, the bottle will jettison like no tomorrow. You have to be careful doing this because as it gets lighter it flies faster and farther. In a video.google.com video you see one launch and hit the top of a building about 30 feet away!
* Any carbonated Diet soda will do, not just Diet Coke. Sprite, gingerale, and other generic sodas work just as well. Smaller bottles will not shoot as high as a 2 liter soda bottle. Only 4 Mentos per 2 liter bottle are needed to get a good volcano. Also, Certs mints work just as well as Mentos.


Warnings

* If you drink soda and then eat Mentos, do not worry at all, the acid in your mouth will stop it from reacting with the soda in your belly.


Things You'll Need

* 2 liter bottle of soda, diet soda is preferable
* Roll or Box of Mentos
* Single piece of paper

Answer 2

I know that if you take a bottle of coke and drop a mentos mint into it, the coke will fizz like crazy and blow right up out of the bottle. Maybe you could do something having to do with chemical reations, etc.

Answer 3

RE: 8th grade technological awareness honest undertaking...Any suggestions? i'm interior the 8th grade am being compelled to take part in technological awareness honest. the class isn't significant yet 8th grade is actual technological awareness so as that must be positive. the concern fact is due in an afternoon or 2 and that i'm thoroughly caught on what to do. final year I did an hassle-free undertaking on laundry...

Answer 4

tooth decay lab. put eggshell into coke and see how long before it decays compare with other sodas or drinks. I got first prize in my science fair(of 8 people) or http://eepybird.com/ and test different reactions between different sodas

http://eepybird.com/exp214.html

Answer 5

The "mentos & soda" has already been suggested.
I'd add- try with different types of soda.
Try with different type of candy.

I think MythBusters did an episode on this.

Answer 6

look up on the internet 8th grade science project. I found some.

Answer 7

see its effect on plants animals or other organisms
or
find its 100% chemical composition