How to do a science experiment about which artificial sweetener corrodes teeth more?
for my science fair project i am testing to see which artificial sweetener corrodes teeth more but i am not exactly sure how to do it. I know that you mix the sweetener in water then place an egg in it but i dont know exactly what to do. if someone could give me a brief explanation of how to do this experimen that would be great. also i was wondering which artificial sweetener does corrode teeth the most?
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4 comments a "How to do a science experiment about which artificial sweetener corrodes teeth more?"
If we gave you the answer to that wouldn’t it defeat the whole purpose of your “experiment” Trial and error my friend!! Good luck!
Just leave the eggs in there for a designated amount of time and then look at the eggs to see which shell has corroded the most.
You need to do the experiment in order to determine which one it is!
Well part of the challenge of this is figuring out how to design your own experiment. But you should make sure to have
- A control: be sure to have at least one egg soaking in water and one in real sugar water as well as the eggs in artificial sweeteners.
-rigor: you should probably have about three eggs for each sweetener, including the control and the sugar water.
an egg sounds like a good idea, do some research on the chemical composition of the shell. you’d have to figure out some way to quantitatively show how much of it has been dissolved. weight? permeability of light? But it has to be quantitative, you can’t just do pictures.
don’t forget your hypothesis! do some research, see if there have been studies about this, make inferences, it’s actually pretty interesting.
good idea for a project, very creative btw
Well, the first thing to do in setting up an experiment would be to write down the scientific method:
Define the question
Gather information and resources (observe)
Form hypothesis
Perform experiment and collect data
Analyze data
Interpret data and draw conclusions
Question: Which artificial sweetener corrodes teeth more?
Information/Resources: (You’re on your own for this one…)
Form hypothesis: (Draw a conclusion from what you find in the resources.)
Experiment:==========
Part of designing the experiment is the procedure. You want to be as specific with the instructions as possible. The first step is to define the constants and variables.
NOTE: The more times you repeat your experiment and the same results show, the better your data looks! And you can conduct the same experiment “repeatedly” at the same time. (This is called “rigor”.)
Constants – the parts of the experiments kept the same:
How much water vs. how much sweetener. (You’d want the same concentration.)
What brand of egg. (Hint: Make the eggs hard-boiled so you won’t have cracks easily.)
What kind of cup. (Use glass.)
Length of time for the eggs to be soaked in the solutions. (Leave it for a week or more. But be exact to the hour/minute. Set timers.)
Temperature (Temperature affects the speed of chemical reaction.)
Light (Keep them under the same light.)
Purity of water. (Use bottled water that is PURE.)
Variables:
Brands of sweetener
Procedure:
If you don’t have bottled water, prepare the water by boiling it and filtering a few times.
Set up the solutions in separate cups. (mL of water and g of sweetener.)
Set up one cup with just water (this will be the control)
Set up one cup with nothing. (also a control, since you don’t know if water itself will corrode the egg.*not likely but just make sure.*)
GENTLY drop the hard-boiled eggs into the water and solutions while recording the time.
Use Saran-wrap to cover the water (So things don’t get in there.)
Leave them in the fridge. (Consistent temperature and light!)
Take them out once every 12 hours to take pictures/measurements. [You can define the measurements. The more subjective your measurements are, the less scientific it seems. Things like "This LOOKS more corroded is a no-no.]
Record your conclusions.
==========
Analysis of data: You’re the scientist!
Conclusion: ??
Summary: You want to talk about further experimentations here. (Things like “Different concentration of sweetener to water ratio vs. the amount of time it takes to completely corrode the shell?” or affects of acidity on teeth over time… possibilities are endless.)
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