The Vibrant Radish Greenhouse experiment
Problem: How does different colors of light affect the growth of radishes?
Background: The wavelength of light is the distance between the crest to crest, or trough to trough. Studies have shown that red lights incident absorbed the most after the reflected light was absorbed into the plant 's chloroplasts. This led me to choose the color of red for the cellophane which I thought would be the best choice
Hypothesis: If the cellophane color is red, then the radishes would most likely grow the most. Recently, I had read an article on how different colored light affect plant growth. Red supposedly released some substance that improved the growth of the plant.
Explanation to our experiment: To test our hypothesis, we made greenhouses and we grew radishes under it. To make different colors of light affect the growth, we wrapped colored cellophane around the greenhouses so when the sun’s rays strike the greenhouse (passing through because it’s translucent) they will carry the color. The method which we measure the group was by mass and height. However with the problem that measuring the mass of the radish would take pulling out its roots, we only measured on the last day. Our height was measured throughout each of our three days of measuring and the greenhouse with the best radishes (mass and heightwise) would be concluded as the result.
Materials: Cellophane, 3 Long and Thick Straws, 6 thin and long straws, 6 Pipe Cleaners, 4
Beforehand, I believed that, if fertilizer speeds the growth of plants, then the 9 pellets of fertilizer were going to make the biggest plant the fastest. I thought this because it would have the most fertilizer and if fertilizer speeds up the growth of plants then 9 must speed it up the most. However, I was not completely right with my initial prediction. My personal data came to the conclusion that the 3 pellets made the plant grow the fastest but in the class data by the end the average data showed that 9 pellets showed the most growth. This experiment was set up as four different plant seeds in four different quadrants. Each of the four quadrants had a different amount of fertilizer. We watered them and planted them in soil then every week we checked in on our plants. We measured the size if the plants and then recorded it and put them back under the fluorescent light. Then everyone recorded their data and we watched the class data on average, then the last day we measured the mass of the plants and found the class data. So although my prediction of 9 pellets of fertilizer creating the most growth was true in the class data, it was not true in my individual
Have you ever really wondered how different variables can affect how plants go through photosynthesis? Well, in this experiment, the purpose was to see how various environmental conditions can affect the overall photosynthetic capacity of a specific plant. The factors, light, darkness, cold, and heat were applied to see how the different components would affect the photosynthesis on spinach plants. Each group was given a different factor to test. Out group was given the light factor. The hypothesis for this experiment is that when adding light as a factor, the light will affect the overall plant photosynthesis.
All five groups recorded the outcomes that they established. For our bench, we found that nine raddish seeds in the control dish, zero raddish seeds in the eucalyptus dish, and four radish seeds in the lemon dish germinated and sprouted. Our bench also found that the average seed length for the control was thirty one millimeters, for the Eucalyptus was zero. and for the Lemon was eight and a half. Below, is a chart and graph that shows the whole data as averages from all five benches. Each bench did the exact same experiment so we knew nothing would be biased.
For my seed experiment I had decided to see what the effect of sprinkling salt on a radish seed would be. So for my control group I had set six (6) cherry radish seeds in between a damp paper towel and then closed it within a Ziploc bag. For my experimental I had set it up the exact same way as the control group but I would sprinkle salt on top of seeds before I zipped up the baggie. I sprinkled the salt on the experimental seeds and dampened the paper towel once every day. Each bag was stored in the light and at room temperature (~70° F.)
The leaves of a plant are the main photosynthetic organs and are involved in gas exchange and water transportation throughout a plant (Evans et al, 17). A leaf typically consists of an upper and lower epidermis, the mesophyll cells, veins, guard cells and stomata. The mesophyll cells contains spongey cells which have large gaps between each cell to allow oxygen and carbon dioxide circulation. The mesophyll cells contain palisade cells, which are located beneath the upper epidermis. The palisade cells contain many chloroplasts, which are green organelles. Located in the internal layers of chloroplasts is the pigment chlorophyll which is involved in trapping the light energy in photosynthesis (Evans et al, 17).
The ravg for the experimental group was 0.1613 and the ravg for the control group was 0.2047. The results indicated that our predictions were correct; duckweed that received less light exhibited a lower rate of
The purpose of this lab is to observe the effect of white, green, and dark light on a photosynthetic plant using a volumeter and followed by the calculation of the net oxygen production using different wavelengths color of white and green light, and also the calculation of oxygen consumption under a dark environment, and finally the calculation of the gross oxygen production.
Therefore, I was correct in my hypothesis that dark will have an effect on the germination of radish seeds. Also, I was very close in predicting that the seeds grown in the light will germinate twice as much as the seeds grown in the dark; the control seeds grew a little less than double the size of the experimental seeds. Ultimately, my experiment proved that light is a very important factor in the growth of any plant. However, I’ve learned that seeds grown in the dark will germinate, though slowly, as
Each quad of soil had 2-3 seeds in it along with either 0, 3, 6, or 9 pellets of fertilizer in each quad to possibly get 4 plants total. Two types of fertilizer exist, organic fertilizer and synthetic fertilizer. Gardeners.com says that, organic fertilizers are made from organic materials. (1) Organic fertilizers also prevent the plant with a better structure, improving the structure of the plant. (2) Synthetic fertilizers are fast-acting fertilizers but also come in different forms such as granule, spike and pellet. (2) This kind of fertilizer is also known for seeing green in the plants quicker and quick-hit of nutrients for the plants. (2) There are advantages and disadvantages of using fertilizer. Plants can have a quick action of growth and are more defined when using fertilizer. (3) But sometimes there is a chance of using the fertilizer to much causing damage to the whole soil ecosystem. (3) Over two weeks we observed the growth of the fast plants and recorded the data of the height. By the end of the two weeks, we also recorded the weight of the fast plants. I hypothesized that each quadrant was going to be different plant growth, with the quadrant of 6 pellets (quadrant C) being the fastest growing plant. My individual results showed that the quadrant with 9 pellets (quadrant D) had the most results with growing in
The low-density radish-collard mix pots contained four seeds of radishes and four seeds of collards. The high-density radish-collard pots contained 32 seeds of each species. While our group replicated this 3x2 design four times to total 24 posts, we incorporated the whole class data. Therefore, there were 16 replicates for each treatment. For each pot, we filled soil up until about one inch from the top. We placed the seeds in the pot and piled on around 2 or 3 cm of soil on top. In 3 species levels, seeds were spaced as evenly as possible. In the mixed species pot, the two species were alternated so that each one had the same access to space and nutrients at the other. For each pot, we wrote down our section number, group name, and the contents of the pot. Our group worked at the first bench in the greenhouse and also contained our pots that were spread out evenly in four rows. Our pots stayed in the greenhouse for about five weeks, captured as much sunlight as they could, and got their water source from sprinklers that automatically came on twice a
The group planted a total of 8 separate pots of seeds. Two pots consisted of only seeds and those were the control group of this experiment. The other plants also consisted of radish seeds but had chemicals ammonia, vinegar, or a combination of both applied once weekly with 30ml of water being applied daily (except on the weekends). As a result, there were a total of 8 pots. Two of each variable and two of the controls.
The spectrophotometer was turned on 15 min prior to the experiment. For each different intensity levels, 2 cuvettes were prepared (one for the experimental variable and one for the control variable). Also, 2 cuvettes were prepared for each different wavelength. Two blanks were prepared for the entire experiment (one for intensity, one for wavelength). The experimental cuvette for intensity consisted of 2.5 ml of 2.5 ml DCPIP, 2.0 ml water, 2.0 ml PO4 buffer, and 0.2 ml chloroplasts, a total of 6.7 ml. The control cuvette for intensity was the same as the experimental cuvette for intensity. The experimental cuvette for wavelength consisted of 2.5 ml DCPIP, 1.7 ml water, 2.0 ml PO4 buffer, and 0.5 ml chloroplasts a total of 6.7 ml. The blank cuvette intensity contained 4.5 ml of water, 2.0 ml of PO4 buffer, and 0.2 ml chloroplasts for a 6.7 ml. The wavelength blank was composed of 4.2 ml water, 2.0 ml PO4 buffer, and 0.5 ml chloroplasts for a 6.7 ml. Before starting the experiment, we set the wavelength at 600 nm, placed the blank cuvette into the spectrophotometer, and set the absorbance at zero. The laboratory was kept dark during the experiment to prevent light pollution.
2.) Make a hypothesis about which color of the visible light spectrum causes the most plant growth, and which color of the visible
In fact, it was Plant E which only received indirect sunlight. Plant A, by day twenty, had only grown to twelve and one-fourth of an inch whereas Plant B had grown to seventeen inches. Throughout most of the experiment, Plant A was never the tallest plant except for day(s) four and six. I believe the reason for this is due to the fact that since Plant A had a constant rate of light, it processed way too much energy for it to be a healthy intake. Therefore, my hypothesis was proven
The purpose of this experiment was to determine if darker green veggies have more same amount of vitamin C as the lighter ones.This is useful in our daily lives because if we were to buy veggies we should know that although you are gaining almost the same nutritional value taking the one with more vitamin C is better,because vitamin C is good for you it also protects you from cardiovascular,stroke,and improves your eye health,and keeps your body strong even as you grow older.My hypothesis was wrong,as in the beggining I thought darker ones had more vitamin C.I was proven wrong in my experiment as it turned out lighter green veggies had more vitamin C.To do this experiment all you need is a blender,a stove,light green veggies,dark green veggies,dropper,little tubes,and your iodine indicator.To make your iodine indicator all you need is 1 teaspoon of cornstarch some water,then add a cup of boiled water to the mixture,and finally just put in iodine until it turns a shade of dark purple.Our controlled variable is how much iodine is put in each substance,the amount of pulp used each time,and the amount of cornstarch and water,the independant variable is how much pulp is put in each test tube.The dependant is how many drops of iodine is needed to turn the substance to a dark shade of purple.The results were the same even when I tried different kinds of veggies,which supports the fact that lighter green veggies have more vitamin C.The next time I do this experiment I will have