In this experiment, the question that was asked was, are elephants afraid of mice? The hypothesis is if a mouse is placed near an elephant, then the elephant will be frightened. The experimenters traveled to an African safari to perform the experiment with their test subjects (an African elephant and a white mouse). They hid the mouse in elephant dung and rolled over the dung whenever elephants passed by. At first there was speculation that the elephants might have been startled by the moving dung. But, after retesting the experiment they realized that was not the case. Only the presence of the mouse seem to stop the elephant in their tracks. The independent variables in this experiment were the methods (such as the elephant dung, the string, the mouse) used as well as the breed of the elephant and mouse. The dependent
The purpose of this lab was to change pennies from copper to silver to gold, like alchemists have attempted to do in history. Through the data and observations gathered throughout this experiment, it can be concluded that the pennies were not changed into a different element. For example, the density of the penny from 2005; which was the penny that was experimented on to see whether or not it could turn into silver; was 4.62 g/cm3 before the experiment and 4.89 g/cm3 by the end of the experiment. If this copper penny really would have turned into silver, then the density of the penny would be 10.49 g/cm3; which is the density of silver; by the end of the experiment. The penny may have turned silver in color, but this was only because it was plated in the zinc that was added to the beaker of water in the experiment.
In this lab, we soaked a gummy bear in water for twenty four hours to see the effects osmosis would have on it. When we got our gummy bear we would take its measurements and soak it in water. After twenty four hours we would take it out and record the measurements again and find the percent change. The question that we addressed in this lab was, what would happen if you soaked a gummy bear in water for twenty four hours? I hypothesized that after this time the gummy bear would increase in size. I predicted this because the water is hypotonic to the gummy bear, so the water would diffuse into the gummy bear causing the cells to swell and increase in size. The control group in this experiment was gummy bears that were not soaked in water because
In our gummy bear lab experiment, we experienced osmosis, the water version of diffusion. My lab partner, Maggie, and I were given two yellow gummy bears. The first one measured at 10 mm in both thickness and width, and 21 mm in height. The approximate volume was 2,100 mm^3, and the mass was 2.567 grams. The second one was 11 mm in thickness, 9 mm in width, and 20 mm in height. The volume was 1,980 mm^3 and the mass was 2.56 grams. After our initial measurements, we placed the first gummy bear in a plastic bag and sealed it. Then we gently dropped the other one in 150 mL of water. We then let both of those sit for 24 hours.
The topic that the scientist has researched is the reaction rate of different particle sizes. In the experiment, the scientist will discover how the particle size of Alka Seltzer affects the rate of chemical reaction with water. The independent variable in the experiment is the particle size of the Alka Seltzer, while the dependent variable is the rate of reaction, or the volume of Carbon dioxide. The volume of carbon dioxide will be measured in ml. Also, a few of the constants in the experiment will be the amount of water, and amount of tablets.
This ted talk don’t eat the marshmallow yet teaches you that if you delay gratification for an even bigger reward you will succeed in life. It is proved that this trait will help you in every single job. At Stanford they did a test on a large group of 4 year old’s with a marshmallow. They left them in a room with the marshmallow for 15 minutes. If the marshmallow was still there, they would get a second marshmallow. If they had eaten it they would not get a second marshmallow. The test showed that a large percentage of the kids who ate the marshmallow did not succeed in their hero’s journey. Also a large percentage of the kids who did not eat the marshmallow succeeded in their hero’s journey. My personal opinion on this is that
The theory I hope to try and figure out is that how long would it take me to get to the center of the Tootsie Roll Pop? Also are there other ways to get to the center of the Tootsie Roll Pop? Like really have you ever looked at a Tootsie Roll Pop it looks like it would take forever to get to the center of the Tootsie Roll Pop! Unless you bite it or like some other technique of getting to the center of the lollipop. That’s why I’m also conducting other techniques of getting to the center of the Tootsie Roll Pop.
Psychological Research can range from being simple to very complex. Psychological research deals with the research that psychologist have conducted to analyze the behavior of individuals. When conducting these researches there are special guidelines which need to be taken. If the researcher fails to meet these guidelines the research may be classified as unethical.
The scientific question that was asked in this experiment was,”What is the best angle to shoot a paintball to achieve the farthest distance possible?” The hypothesis of the experiment was,” If a paintball is shot at a 50 degree angle, than the paintball will travel the farther than any other angle tested.” The independent variable is the angle of degrees the paintball is shot from and the dependent variable is the distance the paintball travels at the different angles it is shot from. The control variables are the brand of paintball gun, the model of the paintball gun, the type of paintballs being shot from the paintball gun, and the tools used to measure the distance the paintball goes. A few materials needed to test this project are a paintball gun, a tape measure in meters, and paintballs. To gather data for this experiment shoot paintballs at 0 degrees three times to collect your data for 0 degrees, then you repeat shooting the paintballs three times from 5 degrees to 80 degrees counting by fives. Collect the data after
In conclusion is that the Magic Eraser sponge soaked up the most water in average.The magic Eraser sponge had an average of 239 ml, the Great Value sponge has a average of 253 ml, the O-Cello sponge has an average of 273 ml, the Scotch- Brite has an average of