Liquid

Ask students questions about the outcome, when two named materials are mixed together. For example: Some examples are cornstarch and water are mixed together to create a slime/glue, detergent and water can be mixed to make a dish washing liquid etc. The final class discussion and the worksheet from Appendix B. form the Summative Assessment as it shows students can put their understand of mixtures to practise. This can be factored when reflecting on/evaluating the effectiveness of the…

A filter is something that removes impurities or solid particles from a liquid or gas that passes through it. There has been a total of 76% of deaths due to infections from dirty liquids and poisonous gases. Not many filters do the same job you would like it to do, but with this particular filter it is made to filter out gases, liquids, and solids from a variety of different elements and objects as well as cleaning any object you toss into it. The item's frame is powerful enough to do these…

molecules are going to be less dense. When using only the ice cubes the molecules are going to be closer together which will increase the molecular count onto the soda. This should also help it cool the soda faster. Whereas, that molecules of a cold liquid mixed with ice cubes are more compact which makes it a more dense of a substance. This may give an advantage to the ice water. Because it is the most dense, it means the molecules are closer together. This also means that more molecules are…

In this case, if the face part (softer) has some damage, it is possible to change it and maintain the backing part in use. Analysis EXTERNAL ANALYSIS Customer Definition The potential customers for the polyfibron offset press blanket are operations managers, superintendents, and foremen of printers and magazine companies in the US. Potential customers have not purchased the new product before but they know about the characteristics that it needs to have. These characteristics are…

throughout the rock shale to increase the temperature to as close to 400 C as possible without going over. As the organic matter is cooked, it needs to be contained by setting up a freeze wall consisting of a closed-loop piping system with cooled liquid. This will freeze the ground water around the piping containing the area. Before approval is granted for this project, this concept is to be tested on a smaller field approximately the size of a football field. Initial calculations and…

like glue or liquid. In observation #2 the slime did not move at all because its viscosity is too strong. Maybe if given more time it will eventually stretch, but since it has such strong viscosity like a solid, it will not stretch in a short period of…

like dust particles or a feather. Part B, we used onions, blue methylene and water. It's called a “Wet Mount” since we used a liquid substance (blue methylene and water).Wet mounts are used with a piece glass concave slide and a solid object for viewing it. A drop of water or other liquid substances is dropped onto the object and a cover slip is slid on top of the liquid. The tension of the surface of the water automatically will close the cover tight to the slide while still holding the object…

The objective of this lab was to brominate a hydrocarbon by converting 2,3-dimethyl butane to 2,3-dibromo-2,3-dimethyl-butane through crystallization. In order to verify the purity and the identity of the product two tests were done, one was using melting point and the other was NMR. The melting point range found in this test was between 138°C-175°C, whereas the ideal melting point for the product was 168°C. Based off of the melting point range, it can be assumed that the product had formed…

AIM OF THE PRACTICAL The aim of this practical was to investigate the reality or the accuracy of the formula for the resultant force on and the position of the centre of pressure on a vertical rectangular surface. SKETCH OF APPARATUS Counterbalance weight Balance pan(with 20g mass piece) Flat/curved surface(as shown below) Water Beaker Mass pieces(20g each) SUMMARY OF THEORY Hydrostatic force is the force exerted by the…

The main purpose of this experiment is to purify an impure solid by the technique of recrystallization. This technique involves several steps, selecting an ideal solvent, dissolving the compound in a minimum amount of boiling hot solvent, filtering insoluble impurities while the solution is hot; crystallizing the purified compound, and isolate the pure compound by vacuum filtration . The unknown used in the experiment was #4, which were white crystals. In order to determine the ideal solvent…