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youtube/watch?v=Xi3oI_mGOHQ&feature=related Gymnastics

http://www.youtube.com/watch?v=Xi3oI_mGOHQ&feature=related Gymnastics. So the link… . What do weight lifting, gymnastics and Chemistry have in common?. Chemistry of chalk and MgCO 3 ,. Weightlifting and the link to chemistry.

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youtube/watch?v=Xi3oI_mGOHQ&feature=related Gymnastics

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  1. http://www.youtube.com/watch?v=Xi3oI_mGOHQ&feature=related • Gymnastics

  2. So the link… • What do weight lifting, gymnastics and Chemistry have in common?

  3. Chemistry of chalk and MgCO3,

  4. Weightlifting and the link to chemistry The lifters use chalk on their hands to aid gripping the bar and to remove moisture, which could cause the bar to slip. Chalk, a naturally occurring or man-made substance, is engulfed with chemistry and it is here that a link between chemistry and weightlifting can be found.

  5. Chalk in sport Lawn tennis – line boundaries of courtWhen the ball hits a boundary line it makes a cloud of dust. Natural chalk has mostly been replaced with titanium oxide now in tennis.Gymnastics & rock climbing – stop slipping • Chalk is applied to hands, arms & legs to stop slipping and absorb moisture. • Natural chalk has mostly been replaced with magnesium • carbonate here.

  6. Other uses of chalk Small amount found in tooth pasteImplements to write with on black boards or for pavement drawings

  7. The characteristics of chalk Chalk is: • A soft solid • White • It can also be found naturally as red in colour • Natural chalk is formed in the ground and is: • Porous sedimentary rock – can hold water • A form of limestone • Composed of the mineral calcite

  8. Man-made chalk Natural chalk has widely been replaced with a man-made chalk called magnesium carbonate. Draw a dot and cross diagram and describe the bonding. What are the properties? It has similar characteristics to chalk in that it is a white, soft solid. The empirical formula of magnesium carbonate is MgCO3.

  9. Magnesium carbonate, although used in sport, also has a range of other uses which include being used in: • Flooring • Fireproofing • Fire extinguishing • Cosmetics • Dusting powder • Drying agents • Laxatives for loosening bowels

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