For this experiment, a few scientists are researching how different flavors/colors of sports drinks effect the amount of red 40 dye in each drink. The independent variable in the experiment is the flavors of Gatorade (a brand of sports drinks) used, while the dependent variable is the concentration of dye the sports drinks contain. The constant variable is the spectrophotometer, the amount of liquid used, and the same type of cuvette. The controlled variable is only using water. In order to determine which drink would have the greatest concentration of red 40 dye, the scientists must first understand what it actually is.…
Independent Variable: The concentration of aqueous 〖"NaHCO" 〗_"3 " Levels of Independent Variable: 0.10 M 〖"NaHCO" 〗_"3 " , 0.50 M 〖"NaHCO" 〗_"3 " , 1.0 M 〖"NaHCO" 〗_("3" ) , 1.5 M 〖"NaHCO" 〗_"3 " , and 2.0 M 〖"NaHCO" 〗_("3" ) Dependent Variable: The average rate of the redox reaction Controlled Variables: Temperature of the solution to maintain reaction rate…
Cell #2 was put in the microwave for 15 seconds. Cell #3 was put in the microwave for 30 seconds. The dependent variable is the amount of the plant growth.…
It’s not just in our soft drinks or snack foods, but in ketchup and mustard, the breads and cereals, the relishes and crackers, and hot dogs and hams,” (page 79). This shows how so many products use this new fructose in the ingredients. It helps lower the costs and feed much more people. When we realize that what we are eating is so unique and processed through scientific marvels in order to help save lives, we realize that it really isn’t that bad of a thing to…
Pill Bugs: An experiment Introduction Pill bugs are very small and can be found anywhere. Under rocks, in between cracks, in your science class; they are everywhere! However, it is common knowledge that pill bugs do not like to be in open spaces. There are just too many dangerous possibilities, and they don’t need to take the risks. In this experiment, we tested to see if light affected the decisions of where pill bugs like to stay.…
The important thing I learn is the CCD have declined substantially over the last five years. bee has dropped altogether and have named this perception the state fall issue (CCD). This is a potential risk towards agribusiness and human nourishment supplies. The role honeybees play in our diet goes beyond honey production.…
In our experiment we evaluated which liquid yeast would produce gas the fastest by measuring how long it took for certain liquids to inflate a balloon. We hypothesized that if the yeast and sugar were placed in a warm,sugary environment like apple juice, then the yeast will produce more CO2 and cause the balloon to inflate faster. The control was the room temperature Throughout the experiment the type of balloons, size of the erlenmeyer flasks, amount of yeast, volume of each liquid, and the amount of time each flask was allowed to sit were constants. Our independent variable was the liquid the yeast was placed in while the dependent variable what how fast the balloon would fill up. The control was the room temperature water.…
My independent variables are the substances I will be adding to the flowers water. The dependent variable is the flowers growth over the days leading to their death. Finally, the control variable is the flowers. My materials are pennies, apple cider vinegar, aspirin, flower food, sprite, 7up, sugar/vinegar, flowers, and cups or vases. The procedures I will be taking are: 1.…
Pesticides are not always safe to humans, animals, or anywhere that is inhabited because pesticides are toxic to every living thing. Whenever farmers or normal pedestrians put pesticides on their plants or crops, they do not understand what they could be affecting in the long run. One of the main creatures that pesticides effects are Bees. The name of this pesticide is neonicotinoid it contains similarities to nicotine, this type of pesticide affect the Bees in memory loss, navigation disruption, paralysis, and even lead the bees to their death. Bees are to the only insects that pesticides harm, they also harm frogs as well whenever the pesticide run into the lakes, or ponds that they live in and contaminates their water which have caused frogs to sexual abnormalities from a Herbicide called Atrazine.…
Hypothesis: Strain B does not respond to the signal. Methods: The variables in the experiment were: the strain type (independent variable) and the percent light bulbs (dependent variable). We had seven plates: two with the A filtrate on the B strain, two with B filtrate on the B strain, one with distilled water on the A strain, and two with A filtrate on the A strain. The petri dishes were labeled and incubated for two weeks.…
Diffusion and osmosis affect the environment, our bodies, and the world we live in. They are processes that happen constantly. The diffusion of chemicals and smog from factories and cars into the atmosphere causes problems (Ovodenko, Alexander, and Keohane). Diffusion is also used in our homes, for common things like perfume (Diffusion). Diffusion and osmosis are also important to our bodies.…
The dependent variables in my experiment were: • The rate of reaction. • The volume of sodium thiosulphate. The volume of sodium thiosulphate will remain unaffected throughout the whole experiment, Where as I will be changing the concentrations of hydrochloric acid.…
Approximately one-third of the food and beverages produced rely on honey bee pollination. As the honey bee population declines as a result of Colony Collapse Disorder (CCD), a phenomenon that causes honey bees to flee their hive and eventually die during the winter months, the agricultural industry in the United States faces an economic loss nearing $20-30 billion dollars. The population decline has been attributed to many factors such as the parasitic Varroa mite, different types of viruses, poor nutrition and genetic diversity, and a Harvard study has linked the use of certain pesticides to CCD. Attempting to address the implications and costs associated with the decline in honey bee population, as well as the financial losses, is imperative…
The control was the first row for both amylases. At 0 min. neither one had synthesized anything so this served as the starting point. The independent variable was the temperature; this is what was being changed. The dependent variable was the amylase activity; this is what (should have) changed because of the temperature.…
PURPOSE/QUESTION The question that we will answer using this laboratory report is, “How is the rate of dissolving sugar affected by changing the temperature of the water, changing the rate of stirring, and changing the size of the crystal?” The independent variable of each laboratory experiment is different, however they are all being changed to get consistent and effective results for one dependent variable. The three independent variables are the temperature of water, rate of stirring and size of the crystal and the dependent variable of the all the experiments is the rate of sugar dissolving. HYPOTHESES Below are the laboratory experiment hypotheses that we have formed as a group to figure out what will happen to the rate of dissolving under…