Slime Design Lab

2018 WordsOct 2, 20139 Pages
Slime Design Lab: Investigate how you can vary the properties of slime  This report will investigate if and how the concentration of sodium borate affects the viscosity of a sample of slime. Background Information: Both natural and synthetic polymers are a vital part of our daily lives. Natural polymers are found in rubber, skin, hair etc. Synthetic polymers are found in nylon, polyester, plastic, chewing gum etc. This lab is demonstrating the properties of the common synthetic polymer polyvinyl alcohol (PVA). It is often used as a thickener or stabilizer cosmetics but also in paper cloths, films and cements. Sodium Borate, also known as borax, is commonly used in household products such as creams, bath and skin…show more content…
Temperature of the sodium borate The same marble It is important to use the same marble because this is what determines the viscosity of the slime. If the marble increased in mass, then it would hit the bottom of the beaker faster altering the overall results. The same marble was used through out the experiment. Same food colouring It may be unknown but perhaps chemicals in the different colours of food colouring altered the viscosity of the slime. The same food colouring was used throughout the experiment. Method: Creating the different concentrations of sodium borate solution 1. Using a 50cm3 measuring cylinder, measure out 15 cm3 of 5% sodium borate solution 2. Set aside on a test tube labelled 5%, on a test tube rack 3. Using a 50cm3 measuring cylinder, measure out 8.75 cm3 of water and add it to the beaker with the 5% sodium borate solution. (This creates 4% sodium borate solution). 4. Using a 50cm3 measuring cylinder, measure out 15 cm3 of 4% sodium borate solution 5. Set aside on a test tube labelled 4%, on a test tube rack 6. Repeat steps 3-5; changing 4% to 3% and 3% to 2% using the given volumes of table 1. 7. Using a 50cm3 measuring cylinder, measure out 15 cm3 of 1% sodium borate solution. 8. Set aside on a test tube labelled 1%, on a test tube rack Method: Creating the slime 1. Add 30 cm3 of polyethenol to paper

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