my “bouncing egg” experiment, I have to put a hardboiled or non-hardboiled egg in vinegar for 1-2 days. While the egg is in the vinegar, the vinegar eats away the shell and toughens the membrane so that it can “bounce”. The acetic acid in the vinegar breaks apart the solid calcium carbonate that’s in the shell of the egg. The calcium ions float free (calcium ions are atoms that are missing electrons), while the carbonate goes to make carbon dioxide—the bubbles that you see. (http://www.exploratorium.edu/cooking/eggs/activity-naked.html ) If you go the hardboiled route with the eggs there’s not much change. When you hard boil an egg the protein in the egg (the protein is high in eggs) makes it hard. “When you heat the egg the proteins gain energy and literally shake apart the bonds between the parts of the amino-acid strings, causing the proteins to unfold” (http://recipes.howstuffworks.com/menus/question616.htm). So basically it’s just a long process of breaks and glues between amino-acids and protein. In the end look at what you get! Science is amazing! When the heat goes up it gives the protein the right amount of energy to create more and better bonds between the protein and amino-acids. There’s six grams of protein in every raw and hardboiled egg. These are the principles of the scientific method for the hardboiled egg. To make my egg bounce, I must use vinegar, which is made of 5 percent acetic acid and 95 percent water. The vinegar is an acid used to dissolve the shell of the egg. The principle may involve the length of time it will take to dissolve the shell. My purpose of my experiment is to show that when the shell of the hardboiled egg is dissolved in vinegar, it will bounce. It will be interesting to see if there is... ... middle of paper ... ...ach egg. We put the eggs in each jar (one per jar) and filled them up till they were covered in vinegar (they will float but push the eggs down gently to see if you have enough vinegar. Add a little more if you don’t have enough). Immediately the eggs had tiny little bubbles everywhere around them. The chemicals and science got to work right away at dissolving the egg shell around each egg. It was amazing! I just want to add that at times the eggs would like to “dance”. By that I mean that the eggs would like to randomly start spinning and I have no clue why. I’ve tried researching this but nothing ever came up I thought it was very fascinating and humorous to watch though. We started this experiment April 1st 2014 at 11:36 am and we ended the April 4th 2014 experiment on at 2:58 pm. It did not bounce as high as we had hoped but the experiment still did a great job.
Dropper Poppers are rubber toys that resemble half a rubber ball and are shaped as hemispheres. They are turned upside-down (or inside-out), left on a flat surface, and after approximately 5 seconds, the dropper popper flies upwards, going higher than its original position. Simply put, the rubber needs to return to its original position, and creates a high surface tension. The rubber’s urge to return to its original position also causes instability within the structure of the dropper popper. When you drop the toy onto a flat surface, the inverted part pops back out, slams into the surface, and causes the toy to bounce into the air. This is a very basic explanation of what causes the dropper popper to act the way it does, and the physics principles
Now what I will need for this experiment is two aluminum bats, they don’t need to be the same exact bat, but they will be the same length and weight. I’ll need a few racquet balls and I will probably try it with bou...
Hypothesis: If pillbugs ball up when disturbed, then the more often they are disturbed the more they will ball up.
The egg breaks when it is dropped. The eggshell is shattered. The yolk is scramble a little bit.
I added ½ tablespoon of baking soda to 4 cups of water. I added a small drop of liquid soap to the water and stirred to mix. I used the end of a straw and cut out 20 circles of spinach leaves. I pulled the plunger completely out of the syringe and put the leaf circles into the syringe. Next I pushed the plunger back in. I used the syringe to suck up the baking soda water until the syringe was about ¼ full of liquid. I placed my finger over the end of the syringe and pulled back on the plunger as far as I could without pulling the plunger out. I repeated this step three times. All the leaf circles sunk to the bottom of the liquid. I placed the spinach into a clear glass with about 2 inches of baking soda solution. I blocked out all light. I set the lamp with a compact florescent light bulb. I placed the glass in front of the lamp. I counted the number of circles that floated after each minute for 20 minutes (positive control). I created a negative control by not placing compact florescent light bulb and not placing the glass in front of the lamp. I counted the number of circles that are floating. I repeated the experiment with fresh circles and used regular water plus soap for all steps instead of baking soda and soa...
There were approximately 8x the amount of pillbugs on the water side compared on the vinegar side. Many sources of error could have occurred during the experiment, however. One possible source of error was that about half of the pillbugs were actually sowbugs, an isopod crustacean that has extremely close relations with the the pillbug. The main difference is that sowbugs do not roll up. This could have been a source of error because the difference in the two species may have attributed to the preferences of the isopods in the experiment. A second possible source of error was uneven lighting on our experiment. We gave our best effort to control the lighting and background as much as possible so that the experiment would not be affected, but there could have been something that was overlooked because a classroom environment is not the easiest thing to control. The last source of error was something that could not have been avoided. As time goes on, the pillbugs could have slowed down their movements compared to when they were first dropped into the bin due to their natural
Here is how I did my experiment. First I formed my hypothesis, and I thought about how I should go about doing it. I decided to use Vinegar (Acetic Acid) and Baking Soda (Sodium Bicarbonate). I used these because they are the basic and well known chemicals used in the "Volcano" project, which is a bubbling, fizzing foam caused by mixing almost any amount of vinegar and baking soda. I first used any amount for a test, in this case it was a one to one ratio.
The purpose of this lab was to show us what will happen to the egg and vinegar when you combine it. When they were combined, a chemical reaction happened, and carbon dioxide is released, that’s why there were bubbles around the egg. After what happened, the eggshells were dissolved.
The egg appeared shriveled after removing it from the sucrose because of the movement of water out of the egg. The sucrose solution was hypertonic so water moved out of the egg from an area where water was more concentrated to the outside of the egg where water was less concentrated due to the high amount of sugar or solute. The acetic acid in vinegar did remove the shell from the egg, because the egg required two days to completely remove the shell, some water did move into the egg causing its initial mass without the shell to be higher than the egg's mass with its shell. Whenever the egg was transferred from the sucrose to the distilled water, the concentration of water outside the shriveled egg was greater than the water concentration inside the egg; therefore, water moved into the egg until equilibrium was reached. At that point, movement into and out of the egg continued with no net movement of water
height of the ping-pong ball in a table of results. I will also make a
Margaret Atwood's “Bluebeard's Egg” is a story centred upon a woman called Sally, describing her relationship with her husband, Ed, and her best friend, Marylynn. The story is told in a third person perspective, a “God-like” figure that takes us through the whole narration, but only revealing the thoughts of one character, Sally. In the story “Bluebeard's Egg”, the main conflict is within the protagonist, Sally; that is, her external self versus her internal self. Sally's external self does not act according to her internal self. In other words, Sally does not express her emotions and thoughts due to the many concerns that she has, both psychological and environmental.
There is not really that much I can do to help make this experiment a
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
cylinder with water and putting it in a water bath so I can record how