In this experiment hollowed out eggs were soaked in coke, tea and coffee for five days to see which drink would discolor teeth the most. As stated in the data interpretation coke discolored the egg the most. My hypothesis was incorrect and contradicted my results. I thought that tea would stain the egg the most but the results proved that Coke stained the egg the most. The eg in this experiment was used to resemble a tooth because the egg's shell is much like the enamel on our teeth. The independent variable was the drinks and the dependant variable was the progress of discoloration. Coke discolored the egg the most for three days, tea discolored the egg for two days, and coke stained the egg the most zero days. In the future if I was to
In our hypothesis we stated that if we have music on one side, and no music on the other, the pill bugs will all attract to the side with no music. A Styrofoam divider was placed into the shoe box, with 5 pillbugs on each side. One side was playing music, and the other side wasn't. This experiment was timed for 10 minutes, after every minute the pill bugs were counted on the side with music, and on the side without. In our experiment the independent variable was the music, our dependent variable was the pillbugs, and our controlled variable was the amount of pillbugs used. The side with the music averaged
The purpose of this experiment was to test multiple brands of popcorn under the same setting in order to conclude which one statistically popped the most kernels. I tested the butter flavor of Orville Redenbacher, Wal-mart’s Great Value brand, and Pop Weavers. The different bags of popcorn were popped in the same microwave for the same amount of time, 3 minutes and 15 seconds. Then, the popped corn was counted, as well as the un-popped kernels, in order to determine a ratio, and then I recorded the results in the data table. I repeated these steps two more times for a total of 3 trails for each brand. Then I compared the ratios of all the bags to determine which brand yielded the most popped corn. The statistical technique used to evaluate the data was to find a ratio between the number of kernels in the bottom of the bowl and the number of popped kernels. To find this, I divided the number of the actual popped corns by the total number of kernels left in the bottom of the bowl. The ratios and percent were then compared. Once all my results were in the data table, I averaged the 3 trials for each brand of popcorn.
The topic is: The cleanest cleaner. In this experiment, the scientists will be testing which brand of detergents cause a better cleaning effect on one stain on multiple white shirts. The independent variable in this experiment consists of the different detergents, while the dependent variable consists of the amount by which the stain faded (using the purple light scale), and or removed, others include the white t shirts, washing cycle, and drying cycle, staining agent, and cycle of drying and washing. The control variable in this experiment will be the 1 trial run with water only per experiment. The unit while measuring the amount of detergent is mL, and a scale which the is going to use to measure the amount of stain faded.
This experiment has a goal of testing a household cleaning theory that dark sodas such as Coca Cola or Pepsi can be used as a cleaning agent and cut through dirt and grease effectively as a cleaner. For the experiment, the researcher/writer has purchased Pepsi products, Pepsi specifically to use as the cleaning product to test. The researcher/writer will clean six different types of messes (Food stains of ketchup and mustard on a shirt, kitchen counter grime/grease, bathroom counter soap scum, car windshield and battery corrosion on a car battery and bathroom counter/sink). Each item will be cleaned with Pepsi and soap and water, with the soap
The purpose of this lab was to test different substances using various procedures to see what biomolecules were present and ultimately find out what restaurant Anna Lyza had eaten at before she died. For the first control test, we used vegetable oil to test for lipids. So, if the solution does not contain lipids, it does not become translucent when placed onto a paper bag square and held up to a light. So, it is a negative result. However, in the presence of lipids, the solution will become translucent when placed onto a paper bag square and held up to a light. Therefore in this case, the result is positive. On the other hand, we used albumin egg to test for proteins in another control test. If the solution does not contain proteins, it will not experience any color change and so it is a negative result. When there are proteins existing in the solution, it will turn bluish/purplish and for this reason it is a positive result. Furthermore in the third control test, we used dextrose to test for simple carbohydrates such as glucose. If the solution does not contain simple carbohydrates, it will not undergo any color change and will remain a blue color. So, it is a negative result in this circumstance. If there are simple carbohydrates present in the solution, the solution will turn reddish and so the result is positive. For the last control test, we used starch solution to test
The purpose of this experiment was to determine if cats have a color preference. I wanted to do this experiment because I took an interest in my cat’s vision. My hypothesis was that my cat would prefer the color blue. I used 5 different colored balls of yarn. They were placed in the same spots and sequence each time. I conducted this experiment for a total of four-weeks. I set my cat up behind a line of painter’s tape and let her approach a yarn ball and play with it. I recorded how many times she approached each color. At the end of the experiment I discovered that my hypothesis was not supported. My cat chose to play with the yarn colored black rather than
The scientific question of the project was, Does the size of a tire affect the bike’s speed? The hypothesis was , If the smaller tires were used, then the bike would go faster. The important procedures were: Make sure all equipment is ready. Test the standard wheel of 1 rotation or pedal a second to ride to the finish line. Test smaller and bigger wheels. Record data and have at least 3 trials. Record the data on a piece of paper and compare results to your hypothesis. The Independent variable is the size of the wheel on the bike. The Dependent variable is the standard wheel or tire on the bike. The control group was the bike’s speed and the standard wheel or tire. The Experimental group is the other tires or wheels being tested on the bike. The control variables were the rate of pedaling , the same bike model was used, and the same distance for
If I was doing this study, my hypothesis would be that “people, who receive an aversive stimulus every time they give an incorrect answer, will try harder to get the correct answer than those who do not receive anything”. My independent variables, which are the variables that researcher manipulates, would be the electric shocks and the emotional motivation; and my dependent variable, which is the variable that is tested and measured, would be the members’ results.
Constant Variable and Control Group:The control group was the respiration rate of the goldfish and lukewarm/normal water.Two controls were the size of the beaker,and the type of fish.
The Science Fair Project that the scientist chose to do is called “Is Denser Fruit Healthier” by Melissa Bautista. The problem statement for this project is “Does a fruit or vegetables density indicate it’s nutritional value?” Our independent variable is the density of my fruits and vegetables. My dependent variable is the amount of nutritional value of the fruits and vegetables. My constant variable is the unit price of fruit and vegetables. Lastly my controlled variable is if the scientist get no fruits and no vegetables.
The method that we used in our experiment deals with a feeding station. An outdoor feeding station was established in Colchester, Vermont on Saint Michael’s College campus. The station was located in a field across the street and behind an astronomy tower surrounded by trees. Our class chose to use red, green, and purple as the prey colors. After a group discussion took place on which colors would best fit this was our conclusion. We chose to use green as the palatable prey, purple as the mostly palatable, and red as the distasteful prey. The mostly palatable prey consisted of ¾ palatable, while the mostly distasteful prey only consisted of ¼ palatable. Flour and lard were the ingredients in the recipe that we used for the prey. The addition of quinine sulfate was given to the distasteful prey to add to the repulsive reaction of the predator (Banschbach, 2012). Next the prey was then colored according to the chosen colors by our class. The red coloring was created using two bottles of red dye in increments of 20 drops, while the green coloring was created using 100 drops of green dye in 25 drop increments. The purple coloring was created in class on the same day but the data for replicating the purple pigment has been misplaced. After the prey was colored the class cut the floury lard prey into roughly (6mm) sections long. They were then labeled in accordance to their palatability. We then randomized the arrays of
2. _C____ Divide your subjects in half. One group receives one treatment of the independent variable and the other group receives a different treatment of the independent variable. Subjects were all told they were going to see a video of a therapist's session after which they would rate the quality of the session. The groups differed in that the subjects in one group were told that prior evaluations indicated that the therapist was effective whereas subjects in the other group were told that the evaluations indicated the therapist was not effective. These different subjects were used for the two levels of the independent variable: subjects were in either the "effective therapist" or the "ineffective therapist" condition.
I interpreted my data by looking at the changes of my variables which were original cranberry, distillated cranberry juice , and the boiled cranberry juice. I looked at the color of the substances to see how they changed. I compared the colors of the three variables. I also tasted each variable. The tasting of the variables were safe because I used all materials that kept the juices edible. I determined if the variables had different tastes after the
a. The study was designed as an experimental research by using independent and dependent variables.
The question we want to ask is if tray temperature and/or food source have an effect on the foraging of squirrels. Also, if one of the effects has a greater impact on the GUD of squirrels than the other. Our hypothesis is that squirrels will be attracted to the cool trays because it would be more comfortable to the squirrels due to the high heat in the summer. Our other hypothesis is that the squirrels will forage more peanuts than sunflower seeds because peanuts have more nutrition per nut opened versus a sunflower seed. The set up for this experiment is that we set up 4 trays at a local park at Jackson’s hometown. Jackson picked this small tree line in the park where he believed to be squirrels present. The 2 “Cold Trays” have an extra tray