would be the melting of our northern most areas and rising temperatures throughout the world. The Canadian Arctic has already started to see that havoc that the warming of our planet will reek. The temperature in the arctic and subarctic has already warmed
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In this lab we tested the effect of temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the difference absorbance levels they produced every 20 seconds for about 2 minutes straight using a spectrophotometer. The important part of this experiment was the temperature the enzyme concentration was made at. What we got from the experiment was at lower temperature we got very low numbers for the absorbance‚ which gave us a lower
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and insulation body.materials and also to demonstrate that heat flow is directly proportional to temperature differences between faces and to cross sectional area. Thermal conductivity is defined as: k = (Q/A) / (ΔT/ΔL) ( Fourier’s equation) where Q is the amount of heat passing through a cross section‚ A‚ and causing a temperature difference‚ ΔT‚ over a distance of ΔL. Q / A is therefore the heat flux which is causing the thermal
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Thermal Expansion Thermal expansion is the tendency of matter to change in volume in response to a change in temperature‚ through heat transfer. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically‚ it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric‚ area‚ and linear. This is used depending on the particular application
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As the temperature increases the rate of enzyme activity will also increase‚ thus increasing the rate of reaction. However‚ if the temperature is too high the enzyme will denature. Materials: 4 test tubes 2 small beakers A dozen filter paper disks Test tube rack Hydrogen peroxide (H2O2) Potato extract Forceps Thermometer Hot plate Large beaker Ice cubes Graduated cylinder Stopwatch Procedure: Step 1 Place 10 mL of potato extract in a small beaker and check the temperature to ensure
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measured as calories because the energy stored inside is released as heat and light. Parts of the experiment Control Group-water Experimental Group- different foods Independent variable- Type of food Dependent Variable- temperature of water Controlled variables- water temperature of unheated water Materials Stirring Rod‚ Beaker‚ ring clamp‚ evaporating disk‚ matches‚ crackers‚ marshmallows Analysis Questions 1. Which foods gave off the most calories/gram? Marshmallows 2. Which foods gave off
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Paragraph 1 In this paragraph‚ the structural and chemistry differences between quartz‚ α-FePO4 and β-FePO4 will be discussed. Quartz do have some similarities with the other 2 components. The structure of quartz‚ similarly depends on the temperature of the environment. Quartz can exist as an alpha or beta form. This is one similarity between the 3. The difference between α-FePO4 and β-FePO4‚ is that α-FePO4 is the most common form of existence for FePO4 and is structurally similar to the alpha
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reviewed briefly. Metabolic heat production and the thermal environment provoke separate and largely independent physiological strains. Metabolic heat production drives body core temperature‚ and the thermal environment drives skin temperature; the combined stresses are integrated to drive sweat rate. Control of core temperature depends on adequate sweat production and the capacity of the environment to evaporate the sweat. The nature of exercise heat stress is demonstrated by rational analysis of the
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Abstract This experiment is done to determine the temperature coefficient of linear expansion of different materials. The different temperature coefficient is obtained through the use of an apparatus for measuring the linear expansion. The PASCO Thermal Expansion Apparatus was use to measure the thermal expansion to get the temperature coefficient. All metals which are used in the experiment all expanded due to the rising of the temperature. The temperature coefficient obtained from experiment is close
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The Effects of Temperature on Basil Germination Abstract: Successful germination depends on many different factors. The amount of moisture‚ the type of seed‚ the temperature of the room‚ and how long the seeds are left in the specific environment‚ these factors are the most common. This paper focuses on the temperature of the seeds‚ specifically basil seeds. Basil seeds were placed on a damp towel‚ in two seperate Petri dish‚ and one was put in a room‚ to adjust to the temperature‚ and the other
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