surface area vs rate of time Introduction: In the investigation an experiment is conducted investigate if the breaking of alka seltzer into ½, ¼ and none effect the time it dissolves. The context of the problem is the time it dissolves to have the medicine show its effect. This problem exist in real life as people take alka seltzer to relief heartburn, acid digestion and stomach aches.…
“See if you can guess what I am now … I’m a zit. Get it?” - Bluto Background: The purpose of the antiseptic lab was to show the effectiveness of multiple antiseptics: hydrogen Peroxide, Purell hand sanitizer, Water and Iodine.…
They were fed rabbit blood that was kept at a temperature of 37 degrees Celsius. This temperature was maintained because the blood was immersed in a water bath that circulated. The membrane that was used for the blood to be sucked through was a parafilm-membrane. The selected bugs were kept at a controlled humidity and temperature. These bugs were tested at different stages of life as listed: species of both male and female adults and nymphs that were at third and fourth phase of molting.…
The objective of the Isopods Lab was to figure out if the Pillbugs favored the wet environment or a dry environment. After reading the pre-lab report on Pillbugs, my hypothesis was that “If water is added to an Isopods environment, then the isopods will favor the wet environment.” By using two groups of Isopods, one group was put into a dry environment and the other had one drop of water into their dish. After ten minutes of observing the Isopods, the results showed that the Pill Bugs prefer the wet environment more. As time went on, the bugs in the wet environment survived longer than the Isopod in the dry environment.…
Isopods that live on land are called Armadillidium Vulgare, also known as pill bugs. Pill bugs consume dead organisms in decomposing soil which are acidic in nature. This trait makes these organisms beneficial to our environment, by getting rid of all the dead and decomposing organisms. Pesticides are commonly used to deter pests from eating crops, and could be getting rid of beneficial organisms such as pill bugs instead. An experiment was performed to determine the preference of pill bugs in choosing between an acidic environment as opposed to basic environment.…
Sowbug Experiment Introduction A sowbug is an isopod that belongs to the Classic Crustacea family. They live in damp, wet, dark environments and are commonly nocturnal. They are mostly found under rocks, rotting tree bark, or logs in moist, dark areas outside. Through the observational study I observed that the sowbugs most often moved towards the edges and buried themselves, they moved quickly, and they mostly stayed and/or ended up on the damp-dark soil rather than the dry-light sand.…
Abstract Experiment 3-14 of the Microbiology: Laboratory Theory & Application lab manual was conducted to utilize the various morphological characteristics of organisms for the identification of unknown broth culture sample #26. Staining techniques including the gram stain and capsule stain were applied to initially describe the sample as a gram-positive staphylococci bacterium. Upon further examination and comparison with the gram-positive control, the microorganism was correctly described as having ovoid-shaped streptococci cell morphology, implicating that sample #26 was Lactococcus lactis. As this microorganism is essential to the food industry and has potential uses in the healthcare industry, proper identification of L. lactis through the staining practices used in this experiment will prove useful for further…
In this lab, we carried out a variety of reactions using different chemicals and metals. A chemical reaction is when the chemical state of the substance you are testing rearranges its ionic and molecular structure. One of the reactions we experienced was single replacement, this consists of one ion switching places with another ion to form a new compound. Another reaction we saw was double replacement. In this reaction, two compounds ions are switched to form two new compounds.…
The use of Sodium dates back to the ancient times. Sodium comes from the English word Soda. “Headache remedy” is its Latin translation. Seawater is where salt comes from. In Egypt, Sodium Carbonate commonly named soda was found in ashes of wood.…
Plants don 't have perception since they are static and they…
Introduction Oviposition is described as one of the final steps in reproduction in insects. It includes the deposition of mature eggs onto an object that is outside the body of the female insect (Saunders 2003). Where and how the organism oviposits depends on the behavioral aspects of different species. Another factor that can influence the oviposition of eggs involves the release of chemicals. The Diving Beetle chooses plants that have readily available food for their newly hatched young.…
Have you ever wondered after watching a certain commercial how or why the product from the commercial was so memorable that it either made you buy or consider buying the product? If you experienced this you are probably the companies target audience and the commercial was well done. Old Spice is a popular American company that creates male grooming products such as shampoo, deodorant, after shave and shower gel that have been widely used by men in North America. Old Spice’s “I Am the Man Your Man Could Smell Like” campaign became a viral success it accumulated millions of YouTube views and has been played during the super bowl and many other popular television programs. For a commercial to be effective it must clearly inform you of the existence…
Discussion Graph 1 displays the reaction time (in minutes) of how long it took for the Alka-Seltzer tablet to completely dissolve per trial. Graph 2 displays the averages of the reaction time which showed the higher the water temperature is, the faster the reaction time would be. At 65⁰C the average time for the Alka-Seltzer to completely dissolve was 1 minute 4 seconds followed by 1 minute 20 seconds at 35⁰C and ending with the highest average at 2 minutes 1 second (1.61). The hypothesis stated that hot water temperature would make the Alka-Seltzer tablet dissolve the fastest.…
Experiment 1. Title: How does the amount of baking soda affect its reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid).…
Purpose: To test the effect of inorganic and organic catalyst concentration and surface area on the reaction rate. Introduction: In this experiment the experimenters will seek to determine what factors determine the rate of a reaction with a catalyst. A catalyst is a molecule that starts a chemical reaction, but it is not part of the reaction it is causing.…