How do Different Light Wavelengths Affect Planaria? 1. Background Information * Non-parasitic flatworm * Some have 2 eye spots‚ while others have several more * Move away from light * Have three germ layers- estoderm‚ mesoderm‚ and endoderm 2. Problem How do different light wavelengths affect Planaria? 3. Independent Variable Color of light 4. Dependent Variable Reaction to light 5. Experimental Group Group that receives the lights 6. Control
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The effects of different wavelengths of light on the rate of photosynthesis Introduction This experiment was performed to investigate the effects of different wavelengths of light on the rate of photosynthesis. If a multiple colored film petri dishes are place under a 50 watt lamp‚ then the rate of photosynthesis will be greater for those with red‚ blue and clear film‚ than those with green and black film. We believed the petri dishes with the red‚ blue and clear film would produce the best
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Do Mealworms Like Light or Dark Environment Better Sarah Tolland Biology 8 F1 September 28‚ 2014 I was assigned to do an experiment on mealworms with a few other students in class. The question we answered was do mealworms like a dark or light environment better? First we made a hypothesis. We believed that the mealworms would like the dark environment better than the lighter one. We placed five mealworms in the same dish and half of the dish was covered so it would be dark and we left the
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Refraction: Does light travel faster in water or air? A straight stick appears bent when partially immersed in water; the sun appears oval rather than round when it is about to set; a stream may appear to be much shallower than you know it to be. These are some of the effects caused by the refraction of light as it passes at an angle from one medium to another. Light refraction happens every day in almost every little thing‚ it is an optical illusion. For our science fair project my
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= 440‚000 / 20‚000 = $22 per hour In turn‚ single-rate budgeted amounts should be :- For Night Light Division :- = (9‚600 * $22) / 12 = $17‚600 per month For Flashlight Division :- = (5‚400 * $22) / 12 = $9‚900 per month b) Since single rate = $22 per hour In turn‚ single-rate allocated amounts should be :- For Night Light Division :- = 700 * $22 = $15‚400 for the month of Juner For Flashlight Division :- = 400 * $22
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Hypothesis (Null): There will be no effect upon different distance intensities of light on the terrestrial isopods. IV: The different distance intensities of light at specified lengths (1 meter‚ 2 meter‚ and 3 meters) DV: The number of terrestrial isopods (rolypolies) on the unlighted side on the petri dish. Control: The unlighted side of the opened up petri dish. Purpose: To determine the light sensitivity of terrestrial isopods (rolypolies) in different levels of lighted environment. Number
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This experiment focuses on the effect of light intensity on the rate of photosynthesis. In simple terms this refers to how the production rate of the products of photosynthesis (oxygen and glucose) will be affected by a light source at different distances. The hypothesis states that “If there is a higher light intensity‚ then more oxygen and glucose molecules will be produced‚ and the rate of photosynthesis will increase.” This hypothesis was accepted. This was determined by counting the number of
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relevance to the story‚ but in an unexpected way. While the contrast of light and dark‚ white and black‚ and good and evil is a common theme in Heart of Darkness‚ Conrad essentially reverses the meanings of what is “light‚” or good‚ and what is “dark‚” or evil. Heart of Darkness is about the penetration of a corrupt light into darkness‚ and the consequences that result when the purity of the darkness is tainted. In this work‚ the light is often viewed as more menacing and evil than the darkness‚ and the
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Automatic street light monitoring using IR and LDR Abstract Street lights are generally switched ON and OFF by the electricity department. A separate person is appointed to take care of these activities without any fail. A part from this if irrespective of the season i.e. whether it is summer or Winter the Street lights are switched ON at the same time in the evening around 6:30 pm and switched OFF at around 6:00 am. And we know that it will be more sunny in summer season with enough light up to 7.00
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dioxide‚ water‚ and light then release oxygen back into the air. This process happens because of the movement of hydrogen to the hydrocarbons that are produced during photosynthesis. The discovery of photosynthesis is attributed to Dutch scientist Jan Ingenhousz who was the first to find that light is necessary to the process‚ it happens in the green parts of the plant‚ and that the product of photosynthesis is released into the air. The first and second part of the lab will
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