Investigating the Effect of Light Wavelength on the Rate of Photosynthesis Method Take a 250cm3 beaker and fill it with distilled water. Use distilled water so there are no impurities to disrupt photosynthesis. Then take x cm’s of elodia and put it in the beaker. Cover the elodia with the large end of a funnel and the tip of the funnel cover with a test tube. Then direct a light onto this experiment. Measure the amount of bubbles that come from the elodia for x minutes. A prediction
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Natural Dyes from Plants in Producing Colored Paste Abstract: Paste is a type of glue made from starch or dextrin‚ a starch product. This investigatory project shows that we can produce our own colored paste without spending much time and money and by performing simple steps. That’s why this Science Investigatory Project can help students save their money instead of spending it in buying expensive and commercialized colored glue. In addition‚ this colored paste can be an additional source of
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ABSTRACT: By exposing Brassica rapa seedlings to UV-C light‚ the effect of the growth and development of Brassica rapa seedlings was tested. The experimental group of Brassica rapa seedlings was exposed to 254 nm UV-C light for thirty seconds after one week of growth. Throughout the duration of one month‚ the height‚ number of leaves and stem diameter were measured sporadically. After one month‚ the biomass of the seedlings was recorded. A starch analysis test was also performed. According to the
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Stage 1 “light sleep”. In this stage of light sleep‚ which lasts about 5 to 10 minutes our brains activity powers down by 50 percent or more‚ producing theta waves. Theta waves occur four to seven times per second. Moreover‚ these waves are slower than the beta waves of 13 or more times per second produced during active alert states and the alpha waves of 8 to 12 times per second when we’re quiet and relaxed. As we start to drift off to deeper sleep‚ we become more relaxed‚ and we may experience
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Introduction: Plant hormones and growth regulators are chemicals that affect flowering‚ aging‚ root growth‚ killing of leaves‚ promotion of stem elongation‚ color enhancement of fruit‚ prevention of leafing‚ and many other conditions. Very small concentrations of these substances produce major growth changes. All plants produce hormones naturally‚ and growth regulators can be applied by people to are applied to plants by people. Plant growth regulators may be synthetic compounds that mimic naturally
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Growth Across Different Countries Economics Growth Average world GDP was only 250 dollar per capita per year as per the estimates of DeLong during the 1800s. Even now‚ the GDP per capita is less than five hundred dollar per year in many developing countries of Africa. Conversely‚ the countries which are under OECD or the Organization for Economic Cooperation and Development‚ comprising of Japan‚ U.S.‚ Canada and various other states of Western Europe‚ have more than twenty thousand dollar average
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The factors affecting plant yield: light level Abstract The factors affecting Zea mays‚ maize (C4) and Pisum sativa‚ or pea (C3) plant yield and growth patterns placed under shade and full sunlight were investigated. 20 plantlets placed into four vermiculite compost pots (5 from each plantlet) and submitted to fertilizer or no fertilizer. And after 4 weeks the results showed that maize grown in light with no fertilizer had a higher relative growth rate and root to shoot ratio indicating the allocation
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Determining Photosynthetic Activity in Plants Using Different Wavelengths of Light and Pigmentation Abstract The roles played by light and pigmentation in photosynthesis were examined in the geranium and Coleus plant. In addition‚ the separation of certain pigments based on their molecular structure was also examined‚ with the use of paper chromatography. When different leaves of the geranium plant which were exposed to different wavelengths of light‚ photosynthesis proved to be most actively
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is the largest increasing factor in our world. This factor is the cause of many events in our world. Poverty hunger and war are just some of the immediate effects of increasing population. Among these extreme causes the less immediate events will be seen with air pollution‚ land degradation‚ which is the effect that’ll have the longest term effect on the world. But how can these events are avoided? Is there any hope of stopping this from occurring any further? The largest‚ most identified reason for
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What effect does crowding have on bean plants? My prediction was that crowding would have no effect on them. I predicted it this way because plants are made to grow in tough conditions and I dident think crowding would have any effect. Materials needed to experiment. 2 Planting pots Planting soil 4 Bean seeds Water Ruler Support stick Notebook Procedure: Take your planting pot fill with planting soil a little above half way. Take your seeds but before you plant
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