GROWN UNDER DIFFERENT LIGHT INTENSITIES ABSTRACT Throughout their growth plants exhibit varying ways to adapt and change depending on their circumstances‚ with changes in the amount of available light being a major factor in plant growth. The aim of the study was to determine whether there are significant differences in the growth patterns of Vigna radiata when grown under varying light intensities. Plants were grown in two different light intensities‚ normal light and no light‚ for a period of 10
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examines the effects of different pH level of vinegar on the growth of bean plants. Materials used in this experiment consist of: water (pH 6)‚ vinegar with the pH level of 3‚ 4 and 5 (each one were made before experiment)‚ beans‚ soil‚ and pots. Eight bean plants were planted‚ two were watered with pH 6 and the other ones were each watered with pH 5‚ pH 4 and pH 3 vinegar. The results were that beans watered with pH 3 shrunk and began to die‚ pH 4 beans were growing at a slow rate‚ beans watered with
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The Effects of Light Intensity on the Rate of Photosynthesis Aim: To investigate the effects of light intensity on photosynthesis. Background: Photosynthesis is a process that plants undergo to produce glucose. The plant then uses the glucose to produce energy which the plant needs to sustain life. The chemical formula for photosynthesis is: Sunlight 6CO2 +6H2O → C6H12O6 + 6O2 Chlorophyll The plant requires light‚ carbon dioxide and
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covers assessment criteria 5 and 6 The Photoelectric effect‚ and the Production of Light In 1887 Hertz discovered the photoelectric effect‚ where electrons were emitted from a zinc surface when illuminated with ultra-violet light. These electrons (called ‘photoelectrons’) were only emitted when the frequency of the ultra-violet light was above a certain value (called the ‘threshold frequency’). Criteria 5c Assume that ultra-violet light is falling onto a piece of zinc‚ and photoelectrons are
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The Effect of Light Intensity The effect of different light wavelengths was tested in the following experiment. The rate of photosynthesis can be affected depending on the light treatment it receives. With the aid of DPIP acting as NADPH in photosynthesis‚ it was possible to observe the reaction as it took place. Samples were created with dark‚ 24 cm‚ 30 cm‚ and 49 cm light treatments. The absorbance was measured in five-minute intervals for each sample and recorded in an appropriate table
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The Effect of Different Light Colours on Plant Growth Dianne R. Calub Marshela Alpha B. Gesmundo BS-Environmental Science Prof. Jayson Antonio Chemistry Department January 04‚ 2012 Abstract The goal of this study is to learn how the colour of light affects photosynthesis‚ to identify the effects of different coloured lights on plant growth‚ and to identify the potential use of different light colours as a growth regulator. An experiment was performed with the help of 7 students. Mustard
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References: Birth: | February 11‚ 1847 in Milan‚ Ohio | | Death: | October 18‚ 1931 in West Orange‚ New Jersey | | Swan Electric Light Company Joseph Wilson Swan (1828-1914) was a physicist and chemist born in Sunderland‚ England
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be defined as light energy being converted into chemical energy‚ which is a very important process for plants and other organisms. Light can be described in terms of light quantity and light quality. Both of these have an affect on photosynthesis. The more light a plant absorbs the more the plant is able to photosynthesize. This light is absorbed though pigments which have specific interactions with certain light waves (colors). The goal of my first experiment was to test the effect that which different
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Investigation of the effect of light intensity Equipment: * Data loga * Light sensor * Bulb * Metre ruler X3 Variables: Independent variable – distance of the light sensor from the light source (m) Dependant variable – intensity of light (lux) Control | Why it needs to be controlled? | How will you control it? | Bulb | There are different watts in different bulbs | Use the same bulb‚ but if your one does break half way through the experiment you can use another bulb with the
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The Coffee Bean There has always been that one person in our lives who always messes things up. Well here is one of those people: His name is Choco and he is a coffee bean. He and the other coffee beans lived on an island far‚ far‚ away. They lived in peace and only ate coconuts. Then one day‚ Choco started it all. He was enthralled by the big yellow thing that everyone said was a flying lemon on fire‚ but Choco knew better. He was the type of bean that was ingenious. He always thought of the craziest
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