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Effect of light color on plant growth
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My goal was to find out which plant would grow faster based on what I watered them with. With the data presented in my tables you can see which plant grew taller than the others. Overall, my experiment did show how planted do not necessarily need to be watered with water to grow healthy and strong. However, I did realize that all three plants were growing at the same rate when given the same amount of fluid. A weakness in my experiment is that I gave each plant 1 ½ tbs of water, soda, and juice. Another weakness may be that the plants did not get as much light they needed to grow bigger, healthier, and stronger. A strength in my experiment is limiting how much sunlight they received even though it was a weakness because we can see if plants
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.
Although, this experiment is not concluded outdoors, it is provided with efficient light that promotes growth. It’s provided with soil, seed, fertilizer, water and NaCl solutions, to test how salinity effects plant growth.
The data we gathered was tested to be as accurate as possible. Our prediction on the solvents did not support our data that we collected. The cause of this could be due to human error when washing the beets or the cutting of the beets. The beets were not perfectly cut the same size, so some beet pieces were bigger than others which can affect the final the final result. We followed each step and followed the time limits cautiously. I can say if we were to redo the experiment our results would be similar because we would attempt to do the experiment as close as we did the first
the replicate shows the same trend as the first experiment. I used a measuring cylinder and a beaker to measure out the amounts of water; however these did not seem to affect the quality of my results. To increase the accuracy of my results I could have perhaps used a burette. Even though I did the best I could to keep the experiment accurate, I did. some places there were mistakes that unintentionally occurred.
In my data table it shows that the gummy bear put in water grew 0.5cm more than the other ones put in the other liquids.
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
... got very different results, however they had carried out the experiment in slightly different ways, making it difficult to compare results.
After various experiments it shows that my hypothesis supports my by experiment because it shows that the germinating corn absorbed more oxygen faster than the peas because the peas were already soaked in water. Germinating peas and germination corn needs more energy than non-germinating peas and corn, so that case they require more oxygen for respiration , meanwhile non germinating pea needs to consume way less
To make the test fair I will use the same amount of water and the leaf
In conclusion, the title and context of the article are clear, and appropriately match the hypothesis of the authors. There is consistency between the objective of the experiment and its relationship to science. This writer found some issues in the overall presentation of information, in that the text lacks smooth transition, and was difficult to read and follow.
The test is to see if spinach leaves discs can be effected by photosynthesis. I predicted that more disc would float in the light than in the dark. After writing down my hypothesis, I put the discs in water on a petri dish and waited 15 minutes. I then recorded if the in the light were floating or not. I also found out that the disc will also change color when they are in the light or in the dark. The hypothesis is supported when the light does have more disc floating in the petri dish than the dark did. I also determined other things as well such as the the dependent and independent variables, and the control treatments. The independent variable is the amount of oxygen in the discs. The dependent variable is the light, darkness, and the amount
the effect light has on the growth of pea plants. It will take place in an environment with controlled light, with equal amounts of plants being grown in the light and in the dark. All elements of the experiment other than light will be kept the same, such as amount of seeds in each pot, amount of soil in each pot and amount of water given to each plant each day. This will ensure a fair experiment. Prediction: I predict that in general, the plants grown in the light will grow better than those grown in the dark.
Overall I think I carried out the experiment in a precise way and I took my time trying to make all my measurements as accurate as possible so that my data is reliable. Next time I will do more tests instead of just 3 so I have more results and so I could get a more accurate average. I will also do the experiment with more fruit juices to see if there are other fruits with a higher content of vitamin C. I will do an experiment to see if there is a difference in Vitamin C levels between fresh juice and store bought juice. I can also test different brands of juice to see if they have different levels of vitamin C.
The plants that we know today as terrestrial organisms were not always on land. The land plants of today can be linked back to aquatic organisms that existed millions of years ago. In fact, early fossil evidence shows that the earliest land plants could have arisen some 450 million years ago (Weng & Chappie 2010). Plants that used to reside strictly in water were able to adapt in ways that allowed them to move onto land. It is speculated the need for plants to move onto land was created by water drying up, causing plants to have less room and pushing them to move onto land. Although the exact cause of plant’s need to move to a terrestrial environment is unclear, it is known that plants had to undergo several adaptations to be able to live on land. These adaptations include: lignin, cellulose, suberin, and changes to plant’s surface, including the formation of a waxy cuticle.
The constant factors in the experiment included; temperature in the refrigerator remained unaltered and also the temperature in the room was allowed to remain constant. Other constant factors were: mayonnaise came from the same jar; the time that the mayonnaise was left unrefrigerated was the same and sample sizes of mayonnaise were measured. Our experimental group (group of any experiment that receives the treatments being tested, one treatment is tested at a time and the group is compared to the control group) was the one that was tested by changing the independent variable(s) for our case the refrigeration and cover or the lid of the jar. We made the group larger so as to arrive at definitive results. Our independent variables (variables whose variation does not depend on that of the other) in the entire experiment were the lid, the cover or the state of being covered and uncovered and the state of being refrigerated or not. From this simple design of our experiment we anticipated to see microbial growth first displayed from the lack of refrigeration as well as more increased growth by being exposed to the open air. The dependent variable (variable whose variation depends on that of the other variables) was the final state of