The rationale for this science experiment was the outcome of how long our cut flowers would last if sugar was added to its water.This experiment can impact many people who enjoy flowers in their home but don’t have the money or time to replace them often. In one of the studies researched scientists observed that the cut flowers (roses) benefited at every concentration of added sugar. The maximum days that the flowers lasted was about 14 days. The article states that when cut flowers are put in a vase they consume water that contains more acid faster. The vase that contained the sucrose lasted five more days then the vase with just distilled water. Although other compounds were tested in this study the one that held the most promise was the sucrose. This article is relevant to this experiment because it shows that carbohydrates can benefit the longevity of the cut flowers which is what we are testing. …show more content…
Since the flowers have been cut from their roots they aren’t able to make their own food, sugar being a substitute. The research question for this experiment was if sugar is added to the water of cut flowers, will the flowers live longer than without sugar? Does the amount of sugar added make a difference?
The independent variable of our assignment was the amount of sugar added to water. The dependent variable was the days that the flowers stayed alive. The levels of the independent variable were no sugar, five milliliters of sugar, ten milliliters of sugar, and fifteen milliliters of sugar. The control group of the science experiment was the vase without any sugar added to the water. The main constants of our project were the amount of water in each vase, the temperature of water in each vase, and the type of flower used. There were three repeated trials of the
Two members of the group were instructed to visit the laboratory each day of the experiment to water and measure the plants (Handout 1). The measurements that were preformed were to be precise and accurate by the group by organizing a standardized way to measure the plants. The plants were measured from the level of the soil, which was flat throughout all the cups, to the tip of the apical meristems. The leaves were not considered. The watering of the plants took place nearly everyday, except for the times the lab was closed. Respective of cup label, the appropriate drop of solution was added to the plant, at the very tip of the apical meristems.
Constant: the dependent variable was the size of the gummy bear after it was soaked in regular water, salt water, baking soda water,and vinegar.
We used wheatgrass were 40 wheatgrass seeds, two empty pots, soil, and water. We first added soil for both pots and 20 wheatgrass seeds in each pot. My partner and I decided that we label pot one experiment which is “sugar and water” and pot two control which is “water” only. The experiment was for almost four weeks we had to make sure both get the same room temperature and water, so we can see the results after this amount of time. Both pots had same room temperature so both can have the same amount of sunlight also, the same amount of water which is a glass of water from the sink once a week. In the experiment pot we added a glass of water with one teaspoon of sugar and the control pot glass of water. Every week we used to see both pots grow almost the same. At the end of the experiment, my partner and I measured the length for both plants and we recorded the average for each plant, so we can know the rate of growth
The tennis ball is the constant variable factor (the variable that is kept the same, to make the investigation valid). The ball will dropped from increasing heights (cm-25, 50, 75,100,125,150,175,200) and the bounce of the ball will be measured. A sample size of 3 results will be taken from each height the ball is dropped. The same investigation will then be repeated, but one of the independent variables will be changed.
From 1773 to 1775 the Americans felt the weight put to them by the supreme approaches. The mix of the brutal duties and the absence of an American voice in Parliament offered ascend to types of protection which drove thirteen settlements in North America to consolidated to break free from the English Domain, joining to wind up noticeably the Assembled Conditions of America. Before the finish of the Seven Years War there was nearly nothing, assuming any, motivation to trust that one day the American settlements would embrace an unrest with an end goal to make a free country state. As a piece of the realm the provinces were shielded from outside intrusion by the English military. Consequently, the pilgrims paid moderately few assessments and
Writing in Biology is different than writing in other courses like English. In Biology, the writer must conduct an experiment prior to writing a lab report on the findings. For this lab report, I had to conduct an experiment comparing the cellular respiration rates of germinating peas and non-germinating peas. Before beginning the experiment, we had to create a thesis that would state which set of peas would have the higher respiration rate, germinated or non-germinated peas. We were expected to make a thesis based on our prior knowledge of how cellular respiration works in plants. I conducted the experiment during class two weeks before the lab report was due. The experiment consisted of placing peas in a Biochamber where the levels of carbon dioxide and oxygen would be measured every 6 seconds for 3 minutes. After completing that, my instructor stressed that we repeat the experiment 5 more times for each set of peas. After collecting the data, we compare...
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
To investigate the osmotic effect of changing the concentration of sucrose solution; distilled water, 20% sucrose solution, 40% sucrose solution, 60% sucrose solution on the change in mass of potato cylinder after 30 minutes of being in solution.
Dependent Variable ------------------ Rate at which the bubbles of oxygen rise, which will be calculated by observing how many bubbles of oxygen rise to the surface of a measuring cylinder (by means of downward displacement) in one minute. This will be measured in bubbles per ten seconds. Control variables: ¨ Volume of substrate used: 100ml ¨ Temperature: taken place at room temperature 21 degrees centigrade ¨ Type of substrate used: Hydrogen peroxide ¨ Mass of meat used: 5g ¨ Amount of water in the test tube in which the oxygen bubbles downward displaces in the water. This is so the time taken for each individual bubble to effectively rise to the bottom of the test tube will take the same amount of time.
...r 15minutes. I would keep the method the same as I did doing this investigation but try a salt solution instead of sucrose as it would be easier to make different concentrations by having a certain amount of salt per 100cm³ of distilled water.
This lab attempted to find the rate at which Carbon dioxide is produced when five different test solutions: glycine, sucrose, galactose, water, and glucose were separately mixed with a yeast solution to produce fermentation, a process cells undergo. Fermentation is a major way by which a living cell can obtain energy. By measuring the carbon dioxide released by the test solutions, it could be determined which food source allows a living cell to obtain energy. The focus of the research was to determine which test solution would release the Carbon Dioxide by-product the quickest, by the addition of the yeast solution. The best results came from galactose, which produced .170 ml/minute of carbon dioxide. Followed by glucose, this produced .014 ml/minute; finally, sucrose which produced .012ml/minute of Carbon Dioxide. The test solutions water and glycine did not release Carbon Dioxide because they were not a food source for yeast. The results suggest that sugars are very good energy sources for a cell where amino acid, Glycine, is not.
The people should control the amount of sugar consumption due to its devastating effect on our bodies. Sugar does more harm than good to our body, for example, it affects our concentration, it is easily addictive, and it keeps our body to function properly.
Boost Energy”). Although the sugar may give a quick energy boost, it will wear off and leave
Dependent Variables Amount of vitamin C in fruit juices. Controlled Variable Same amount of liquid for each fruit juice.... ... middle of paper ... ...
Insect pollination as we all know, is the process that enables reproduction and fertilization by the transfer of pollen performed by insects. Insects are some of the oldest pollinators of plants. Pollinating insects date back to 140 million years ago. Since then, due to how effective insect pollinators are, these flowering plants have become the major group of terrestrial vascular plants. Flowering plants, also known as angiosperms, have imperative roles within our ecosystems, both natural and agricultural. For instance, insects provide food, fiber and shelter for wildlife and humankind alike (2007). It is commonly know that in humans, high levels of fruit and vegetable consumption are associated with decreased risk of chronic disease (Calderone 2012). Aside from these important roles, plants have also been considered as a viable option for fuel sources (Calderone 2012). There are around 300,00 species of flowering plants in the world and without pollination, the reproductive process would be very difficult since pollination causes the production of seeds (Calderone 2012). Of the 300,000 plant species worldwide, a little over 3,000 of these plants have been used as a source of food. Close to 300 of these species are grown around the world today and only 12 of these plants make up about 90 percent of the food sources in our world. These 12 include the grains...