After performing this experiment‚ it was found that the surface the chocolate was placed on could make a major difference. The hypothesis that was made had mostly incorrect predictions‚ but with some correct ones. It was found that using the palm of one’s hand was the best surface on which to melt chocolate‚ as was predicted. It melted so far‚ and so fast‚ that the experiment had to be altered. Coming in second place was the surface of black paper‚ something that was not expected. The black
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Title: To Investigate the Effect of Concentration on the Rates of Diffusion. What is the relationship between concentration of hydrochloric acid and the rate of diffusion? Abstract The research question that this report is going to discuss is “What is the relationship between concentration of hydrochloric acid (HCl) and the rate of diffusion?” My hypothesis for this research question is that change in rate of diffusion will be observed when the agar
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does surface area affect reaction speed? The aim of this experiment was to investigate how the surface area affects the rate of a reaction in between calcium carbonate and hydrochloric acid. My hypothesis was that if the surface area to volume ratio of calcium carbonate was increased‚ then the rate of the reaction will increase because there are more particles that are accessible by the hydrochloric acid‚ thus more particles that can react with each other. Variables Independent- Surface area
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Friction on a surface. Aim: To establish the relation between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance Materials required: A rectangular block of wood with a hook ‚ set of weights‚ strong thread and a spring balance. Theory: The force of friction acting on a block of wood is proportional to the normal reaction acting on the block. By the third law of motion‚ normal reaction is equal to the weight
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An experiment to investigate the Stroop effect in which participants are asked to name the colour in which a word is written‚ that word having either a colour- association or a neutral association. ABSTRACT. This study was an investigation of the cognitive processes at work during a variation of the classic Stroop test and effect‚ in which the degree of intrusion into automatic thought processes may be witnessed in a colour identification task. It was found that the rate of word identification
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1. SURFACE RUNOFF INTRODUCTION: Runoff means the draining or flowing off of precipitation from a catchment area through a surface channel enters into a stream channel. It is convenient to visualize three main routes of travel; overland flow (air hujan limpahanpermukaan)‚ interflow‚ and ground water flow (air dari punca bawah tanah). 1 Runoff results from rainfall occurrence in a hydrologic catchment. Rainfall-runoff relations are Interflow/subsurface and base flow/groundwater flow
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A cylinder is a shape with a circular bottom at the both ends that kind of looks like a pringles potato chip bottle THE formula of finding the volume of a cylinder is base area times height of cylinder. The base area will be the area of the circle which is pi x radius x radius So you just take that answer and multiply it by the height of a cylinder. done math math math cylinder cylinder asdfghjk lkjhgh jhgf ghjxskdskdgc kdshfkhshfkshksskkkkjs wordlimit mine is
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Chapter 2: Try as You Might‚ You Can Never Escape from Hiratsuka Shizuka 2-1 The cicadas were noisy right from the crack of dawn. According to the TV I had left on in the background‚ today was going to be summer’s biggest heat wave yet or something. Didn’t those guys say that every day? This was like those super talented idols the likes of which are only seen once every decade‚ and yet‚ for some reason‚ pop up every year. The heat was making me grouchy‚ so I switched off the TV abruptly. Then I collapsed
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Experiment 2: Measurement of equivalent radius‚ bulk density and solid density of granular materials. Objective: To measure the equivalent radius‚ bulk density and solid density of granular materials. Materials: Red beans‚ green beans and ground nuts. Apparatus: 100mL measuring cylinder‚ 50mL measuring cylinder‚ analytical balance and cooking oil. Procedure: Results: Table 2.1: Data of equivalent radius‚ solid density‚ bulk density and porosity of granular materials. nj Red beans Green
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An Understanding of the Concept of a Three-Dimensional Cubes and Surface Area in the Classroom Written by Vanessa Kinsey There are several uses in our daily lives that involve calculating the area of objects or places. Many of these daily recurring calculations require using acquired skills to figure out the area of three-dimensional objects. When introducing the concept of surface area to 5th and 6th grade students‚ they need to first know what three-dimensional objects look like and understand
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