I picked the science experiment elephant toothpaste this year, because it seems interesting and fun. It is also a way to test if the removal of oxygen in these experiments will actually work. I have four different experiments. Two out of the four experiments I am testing, is to see if there is a different reaction time and size between yeast and potassium permanganate and the percentage of the hydrogen peroxide. My third and fourth are tests of elephant toothpaste is to see if adding cornstarch has a color reaction to the potassium iodide to make it look like it is “glowing”, or if the yeast and fluorescent dye will make it look “glowing”. I think the elephant toothpaste that uses 50% hydrogen peroxide and potassium permanganate will have the …show more content…
All of these ingredients mixed together makes foam by a chemical reaction. The foam “bubble” is filled with oxygen; the yeast is used to remove the oxygen from the hydrogen peroxide. This process is very fast, and that is the reason the foam is formed. During the chemical reaction the bottle or tube starts to get warm. This chemical reaction is called Exothermic Reaction, which means it not only created foam it also created heat. This experiment is done in a long plastic tube. Once the process is occurring it starts to overflow out of the tube and looks like toothpaste. My second experiment is to compare the chemicals, the size of the foam and the reaction time. For the second run the ingredients are: potassium permanganate, 50% hydrogen peroxide, dish soap and water. Potassium permanganate is used for a bigger or larger reaction. It is an inorganic chemical and is a strong oxidizing agent. They are crystals with a bright purple color to them. The color of them is why this experiment eliminated food coloring. The chemical reaction between hydrogen peroxide and the potassium permanganate is very vigorous and it releases steam, but with the water and dish soap mixed in with the two chemicals makes it somewhat bubble and explode into a big tubular …show more content…
The ingredients that will be included are: dish soap, 30% hydrogen peroxide, potassium iodide, and corn starch. Adding the cornstarch to the mixture has a chemical reaction to the hydrogen peroxide. It will have light and dark patches due to the uneven placement of the cornstarch; it will have an uneven reaction. Which will then make it appear “glowing”. The fourth experiment is very similar when it comes to the ingredients the only thing that changes is that we are no longer using potassium iodide but we are using yeast instead. Also, since yeast is being used, we are adding in fluorescent dye to it so we can shine a UV (ultraviolet) light on it to see the reaction occurring. Using the dye under a light helps us observe the reaction between the dye and cornstarch. I had to replace the potassium iodide with yeast for a slow reaction and also so it is possible to use the dye. In both of these experiments the reaction is a massive production of foam. The hydrogen peroxide will be decomposed into water and by the oxygen by the iodide and/or the yeast. A substance called catalyst speeds up the
The purpose of this experiment was to test which brand of whitening toothpaste is the most effective. The original hypothesis was that Crest 3D White Advanced Toothpaste be the most effective, while Arm & Hammer Advanced Whitening Toothpaste will be the least successful in whitening the tiles. The hypothesis also stated that the Sensodyne and Colgate brands will be equally as effective, while being more sufficient than Arm & Hammer, but less than Crest. The hypothesis was partially supported as Arm & Hammer was the least effective and Crest was the most. However, Sensodyne was more sufficient than Colgate. This was clearly displayed on the graphs
To continue the experiment further I can use a different source of light to test the intensity of light. For the food coloring experiment, I could use a different food color such as yellow or orange to test.
If the amount of either hydrogen peroxide or yeast is different in any of the sections in the experiment then the results
There is not really that much I can do to help make this experiment a
Our project is how to train goldfish. We want to test the behavior of the fish. In the other we will just feed them. The constants are the tank, the amount of the goldfish, the feeding time, the rocks, and the days we clean the tank. In the experimental group we will have two fish and every time we feed them we will have two fish and every time we feed them we will ring a bell for 7-seconds. In the control group, we just feed the fish. We will condition the fish who know when they are being feed. In conclusion, our science fair project is
The materials I used for this experiment are a one ounce of red food coloring , four ounces of water and one tablespoon of cocoa powder, I used these materials to make fake blood. I also used a ruler, newspaper, plastic, a
Paper Towels Variables: To enable fair test certain aspects of the experiment will have to be
Gum, not only a fun thing to chew whenever we feel, may actually be helping us in school. The experiment is all about how the brain remembers words. But in this experiment, I am testing if gum actually helps us remember a paragraph of words. The variable that is changing is the flavor of gum. It is being changed to see if one helps more than another flavor. One thing I am keeping the same is the paragraph being memorized.
== Refer to, Chemistry Lab #1 – What’s the substance? However, I changed some of procedures during my experiment, here is the changes I made in this experiment: * I only used the toothpick to place a small amount of each sample on a separate piece of paper, instead of the spatula.
When faced with the problem of poor dental hygiene, the toothbrush is man’s best friend. After a long day of munching chips, slurping soda, and chomping sweets, teeth become dirty and stained. The only way to solve the problem of filthy teeth is a toothbrush and toothpaste. Contrary to popular belief, tooth brushing is a complex process will many meticulous steps. Although it is a complex process, brushing teeth is needed to achieve dental hygiene. The main steps include entering the bathroom, preparing the toothbrush, brushing the teeth, and cleaning the sink.
It is expected that potassium permanganate will travel a farther distance than the methylene blue because the permanganate has a smaller molar mass then the methylene, particles that are larger take more time to move than smaller particles do. In the second experiment it is anticipated that sucrose will increase in volume whereas the water will decrease in volume, this is due to osmosis of water particles and the selective permeability in the dialysis tubing. The second part of the experiment, which dealt with color change in iodine and sucrose, it is predicted that dialysis tube
Teeth have been big news lately. First, there was the issue of whether flossing really helps lower the risk for tooth decay and gingivitis.
We took pictures of each other’s data once finished with the lab. For the paper chromatography, students began by grinding 5g of spinach along with 2g of anhydrous magnesium sulfate. Students added hexanes and acetone as specified by the lab protocols. Once, the solvent was a dark green color, we placed it in a centrifuge and transfer the liquid portion of the solution into a test tube. Throughout this portion of the experiment, students used weighting paper as a funnel poring the indicated solution as stated by the protocol, for instance pouring silica gel and sand into the column. After, we poured about 3ml of Hexanes into the column, making sure not to let the column dry. We then added, spinach extract to the column—after, we added about 1ml of hexanes. Adding hexanes caused the solution to gain a yellow colored band. We added hexanes until the yellow band reached the bottom of the column, thus began to collect all the yellow pigment into a test tube. Once the elutant become colorless, we once again placed a waste basket under it. Finally, we collected the green pigment into another test tube by a 70%/ 30% mixture and a bit of acetone. Once the two colored bands were collected, we obtained the wavelengths of each colored band using the
There is a lot more to know about bubbles. Hopefully your amazing demonstration will get your students interested in learning more about the science of bubbles!
Ties and hair should be tucked out of the way, so they do not make contact with any of the chemicals. It would also be preferable to wear a scientific apron, however this is not essential. We should also try our best not to spill any chemicals, and we must not eat or drink in the lab while dealing with these harmful chemicals, as they can get on our hands. Fair Test To make this experiment a fair test, we need to make sure we do a number of things. In this experiment we are trying to find the rate of reaction using concentration as a factor, so there are a number of things we need to make sure we do to keep it a fair test.