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Use Items from another project to study this high school experiment.
You can do the experiment from the 8th grade science project and use the teeth from that experiment to test this one. Once you have the stained teeth now you want to determine how you can get them cleaned and that is where your high school science project experiment comes in to play. You will probably need to get teeth stained by one substance. If you have found that coffee stained the worst then stain 4 or 5 teeth with coffee. You will want a standard in this project and that is the coffee stained teeth. You will then test to see which substance may remove the coffee stain most efficiently. Get these items together: Toothpaste Baking Soda Tomato Juice Vinegar Hydrogen peroxide Place each of these items in a small cup or bowl. The baking soda you will need to mix with a small amount of water to make a paste. Place each tooth in a solution. You will need to put the tooth inside or smear the paste around the tooth with the toothpast and baking soda. Now let them sit overnight. and in the morning remove from each liquid and pat dry with paper towels and place in a row for observation. Make notes about which tooth looks cleaner and why. Was your hypothesis correct in which cleaner would work the best. If not what did you discover about the solution that may have worked better? This is considered a high school experiment because it has more preparation in staining the teeth and then cleaning. Chemistry type of experiment: This will probably take a little critical thinking to determine the chemical reaction and items in each material used. Take a piece of copy paper and draw 5 or 6 lines down the paper evenly spaced apart with a ball point pen. Take another piece of copy paper and using a marker do the same thing. Use a washable marker. Take yet another piece of copy paper and use a crayon to draw the same 5 or 6 lines down the paper length Last one on this paper use a pencil to draw your lines. Now get these items from your kitchen or bathroom cabinets: toothpaste hairspray window cleaner simple green dishwashing liquid an eraser Using a little bit of each item above put a small amount of each line you had drawn on each piece of paper. So on the first paper you have 6 lines. Put toothpast on one line, hairspray on one line, window cleaner on another line, simple green on the 4th line, dishwashing liquid on the 5th line and use an eraser on the last line. You do not need to totally cover the lines with these items just spray or put a small amount on each one. Set your papers on the counter and go away for about 30 minutes. When you come back make a visual observation of each one. You may need to wipe the toothpast and dishwashing liquid off. See if any of them had an effect on removing that mark. If any did which one was effective or the most effective. What type of chemical reaction could have happened to cause this? Did you notice the hairspray probably removed the ball point pen ink? What other interesting finds did you have?
© 2006 Fetching Science Projects. All rights reserved. High School Science Project
High School Science Project
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