Cartesian Diver Essay The Cartesian Diver is named after the French scientist Rene Descartes. This experiment is supposed to show buoyancy‚ density and different forms of matter at work‚ when demonstrated. To create the Cartesian Diver‚ you’ll simply need: • A empty plastic bottle • A plastic eye dropper • Water 1. Fill the bottle with water‚ but be cautious of spills. 2. Very carefully‚ drop the dropper inside the bottle. Then‚ seal the cap on very tightly. 3. Squeeze the bottle‚ but not too
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Tutorial 5&6: 1. A trickling filter has a diameter of 20 m and a depth of 2.5 m. It is operated with a direct recirculation ratio of 1.0‚ and the influent sewage flow rate is 3 ML/d. Influent BOD to the primary tank is 200 mg/L‚ and the BOD removal efficiency in that tank is 35 percent. Compute the organic load on the trickling filter. 2. A grit of specific gravity 2.8 flows into a grit chamber‚ 1.5-m wide‚ 10.5-m long and 2.5-m deep. The flow-rate of wastewater into the chamber is 2 m3/s.
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malachite sample 2.25% Conclusion: The experiment went well and there were very few problems. The only experimental difficulty was during the first time the solution needs to be filtered and the filter paper became clogged up and it took a long time to drain through and a small amount of liquid may have not filtered through. The experiment could have been improved by replacing the filter paper when it became blocked with a new piece‚ making the experiment quicker and more accurate. We
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given the bulk density and minimum void content. Equipment * Electronic Balance * Metal Cylinder (AS Compliant) * Metal Scoop * Tamping Steel Rod Test Procedure 1. Determine the weight and volume of the cylinder (for lab experiment written on side). 2. For the mixed aggregates ensure they are well mixed. Now fill the cylinder with the aggregate to 1/3 the height of the cylinder using the scoop. 3. Compact the aggregate with the tamping rod giving 25 strokes without
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Aim To find out how the permeability of a beetroot membrane cell is affected by ethanol. To do this we will investigate different concentrations of alcohol (10-70%) and measure the absorbance using a colorimeter to show us how much juice has leaked out. Hypothesis I predict that as the concentration of ethanol goes up‚ the permeability will increase as the ethanol will slowly dissolve more phospholipids (lipid bilayer) and so more anthocyanin (the beetroot juice) will leak out of the membrane
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Pressure In Gases Experiment Hypothesis: Using the recommended tire pressure will provide better gasoline mileage. When the tire pressure is lower than the recommended value‚ the surface contact area between the tire and the road is greater. This will cause greater friction and more energy is required to move the car. As a result‚ more gasoline will be consumed. When the air pressure of a car’s tire is higher than the recommended value‚ the contact area between the tire and the road is reduced.
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Experiment 1 Background Diffusion is a process‚ in relation to the spontaneous movement of molecules from an area of high concentration‚ to an area of low concentration down a concentration gradient. It is a type of passive transport method‚ that requires no cellular energy (ATP). This movement occurs‚ until a state of equilibrium has been established on both sides of the membrane. The diffusion of molecules happens at cellular level‚ through a cell membrane via the pores. The cell membrane
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Introduction: In any pipe system there is going to be a loss of energy due to the effect of viscosity from a fluid acting upon the surface of the pipe‚ this is called Friction Loss. This type of lost depends on the shear stress due to the walls of the pipe and the fluid. It also depends in weather the fluid is laminar or turbulent. A major difference between these two flows is that due to a viscous layer created in turbulent flow the roughness of the pipe can be taken in account while in laminar
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Makalah Biologi Percobaan Reaksi Hidrogen Peroksida dengan Katalase Penulis: Jancolin Yani Pendahuluan Seperti yang kita tahu bahwa hydrogen peroksida yang dihasilkan oleh sel-sel didalam tubuh kita akibat metabolism sel akan terpecah menjadi gas hydrogen dan oksigen dengan adanya keberadaan enzim katalase. Zat hydrogen peroksida sangat berbahaya bagi tubuh dalam kuantitas yang banyak oleh karena itu harus dipecah dan dikeluarkan. Sebagian besar zat hydrogen peroksida
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PAGE 1 Skill A: Using and Organizing Techniques‚ Apparatus and Material Title: Comparison of Soil Porosity Date: March 18‚ 2013 Aim: To prove that Sandy Soil would have the mot water after 24 hours. Apparatus/Materials: Three Conical Flasks‚ Three Filter Funnels‚ Cotton Balls‚ Measuring Cylinder‚ Loam Soil‚ 225ml of Water‚ Paper‚ Pencil Methods/Procedures: Obtain and clean out three conical flasks. Label each flask Sand‚ Loam and Clay. Plug three funnels
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