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Special Sugar Crystals

Put your school logo here!. Comments. Executive Summary. Special Sugar Crystals . Clear seed crystal (~0.5cm), grew in a light green solution for 30 days). Introduction. Small sugar seed crystal left to develop in a sugar with KH 2 PO 4 solution.

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Special Sugar Crystals

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  1. Put your school logo here! Comments Executive Summary Special Sugar Crystals Clear seed crystal (~0.5cm), grew in a light green solution for 30 days) Introduction Small sugar seed crystal left to develop in a sugar with KH2PO4 solution • Green sugar crystals were grown in a beaker of saturated solution and left to develop for weeks until it reaches a size of around 0.5cm3 or when various other crystals starts developing spontaneously. Afterwards, the green seed crystal was left in a colourless saturated sucrose solution to be coated with a layer of colourless sugar crystal. • Acknowledging the fact that the seed crystals will not grow well in a super saturated solution, a colourless solution slightly below saturation point was prepared and left to evaporate for days. Before the green seed crystal was placed in. A visual inspection of the viscosity of the new solution was used to determine if the solution is ready Crystal left too long (~45 days) to develop in a dark green solutions (~2cm) • We managed to grow a clear green seed crystal with defined edge with a solution slightly below saturation point and cover with aluminum foil • We are able to grow an external layer of colourless seed crystal with well defined shapes with minimum disturbance • We are unable to determine if Masaru Emoto’s findings can be applied to sugar crystal growing Team members: Shaw Jia Jun & Li Lidao Teacher in charge: Mr Lim Siao Yi, Hwa Chong Institution Category: Junior Objectives Conclusion/s The objective of our experiment was to: grow a clear sugar crystal by ensuring minimum mechanical disturbance Find out the most effective way of preparing a saturated solution for optimum crystal growth Based on our experiment we feel that below are the essential steps to be taken to grow a clear sugar crystal Experimental Description References Marshall. (Photographer). (1999). Insulin crystal grown in space. [Web Photo]. Retrieved from http://science.nasa.gov/media/medialibrary/1999/09/10/msad20sep99_1_resources/9901879.jpg boyle. (2006, January 08). Crystallisation technique. Retrieved from http://www.google.com.sg/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CC4QFjAB&url=http://depts.washington.edu/eooptic/linkfiles/Crystallisation_Techniques.doc&ei=zNZJUMjUBYzIrQfE34GoCA&usg=AFQjCNHiUZWYJfcv4qKWlekiFGfmSknnsA&sig2=bGh8mvU27U5_9n_fdWIHOA Martin, L. (2012, Feburary 09). Tips for crystal growing. Retrieved from http://www.cryst.chem.uu.nl/lutz/growing/growing.html Organised by: Sponsored by:

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