Activity; Making a lava lamp effect.Number of Children; 5/6 Setting; Primary School Year 3. Preparation Time; 15 minutes. Age of Children; 7-8 Years old. Activity Time; 30 minutes. Resources: | Rationale: | Clear plastic bottle. 3/4 cups of water. Vegetable oil. Food colouring. Alka –Seltzer tablets. | Get your clear plastic empty bottle‚ put 3-4 cups of cold water into the bottle‚ then add the vegetable oil till its nearly full up to the top‚ then add 10-15 drops of food colouring
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Abstract The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid‚ cellulose‚ and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have
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Hydraulic fracturing is a process in which fractures in rocks below the earth’s surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil. How the process works: The process includes steps to protect water supplies. To ensure that neither the fluid that will eventually be pumped through the well‚ nor the oil or gas that will eventually be collected‚ enters the water supply‚ steel surface or intermediate casings are inserted
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purpose of this experiment is to find out the density of the unknown solid object by determining the mass and the volume through the experiment. To do this we will be get the mass of the object and determine the volume of the object by placing it into a liquid. Then we will divide mass by volume and get its density. Materials 3 buckets filled with water Water A bucket to measure volume A stool Measuring scale to measure weight Notebook Procedure 1. Find the weight of the student and then convert
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droplets are visible‚ remove them before adding the drying agent. Add a small amount of anhydrous sodium sulfate (or magnesium sulfate) to the flask. Let the mixture stand for 5 min. occasionally swirling it gently. 7) Decant or pipette the organic liquid away from the drying agent and place it in a clean‚ dry Erlenmeyer flask. Place it in the hood to allow the ether to evaporate (if needed‚ set aside overnight to dry). 8) After separating the mix‚ collect the products by vacuum filtration. Wash with
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the temperature of the warm water before the ice was add it and after the ice was added it. To take the temperature of the water we need to use a thermometer and make sure it’s in Celsius. To determine the mass‚ first I need to find the mass of the liquid (water) using a graduated cylinder and then find the mass again after the ice is added and then melted using the same material (graduated cylinder). Data & Observation Results | Trial 1 | Trial 2 | Trial 3 | Initial Volume of water (V1) | 100
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Musnit ------------------------------------------------- Corporation Wear Check offers many services for predictive and preventive maintenance‚ including competitive pricing and short turnaround time. Analysis are carried out at state-of-the-art‚ custom built‚ automated laboratories with interpretation and reports being completed by qualified staff. Other services include: * * Telephonic and on-site support. * Advice including in-depth investigations and trouble shooting by
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The investigation was designed to determine the effect of the addition of increasing concentrations of a miscible liquid (ethanol) on the solubility of KNO3 in water. The results of the investigation support the hypothesis that water‚ which exhibits greater polarity‚ is able to dissolve a greater mass of KNO3 at lower temperatures compared to tested concentrations of Ethanol ranging from 12.5% to 30%. Furthermore‚ the results of the graph 1 show correspondence to the dielectric constant of each solvent
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Discussion The mucilage glue would work well with paper because the paper would soak up the glue and the wood would have to have a lot of glue and time. The glue stick isn’t that wet so it wouldn’t be soaked up by the wood. The white glue is a liquid so it’s sticky but takes time to dry. VII. Conclusion I was right when I said that mucilage glue is good on paper. I was right also when I said that‚ a glue stick is pretty good on paper. I said that the white glue just needed time to dry‚ so
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is no more Alka-Seltzer‚ and the bubbling has completely stopped. 9.Screw on the cap of the soda bottle. 10.Tip the bottle back and forth and watch the wave appear. The reason this homemade lava lamp works is because the tiny droplets of liquid join together to make one big lava like blob. Place a flashlight with a bright beam under the bottle to illuminate the bubbles for maximum visual effect. Soda bottle with cap Vegetable oil  Food coloring any color  Alka -seltzer A cup
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