limestoneOpt

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Limestone, oil, fractional distillation 100’s of free ppt’s from www.pptpoint.com library
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Limestone Limestone is a __________ rock made up of mainly calcium  carbonate.  It’s cheap and easy to obtain.  Some uses: 1)  Building materials – limestone can be quarried and cut into  blocks to be used in _______.  However, it is badly affected by  ____ ____. 2)  Glass making – glass is made by mixing limestone with _____ and  soda: 3)  Cement making – limestone can be “roasted” in a rotary kiln to produce dry  cement.  It’s then mixed with sand and gravel to make _______. Limestone + sand + soda                glass Words  – sand, building, sedimentary, concrete, acid rain
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Limestone If soil is too _____ crops will fail.  Limestone can also be used as a neutralising  agent.  There are two reactions to know: 1)  Firstly, a THERMAL _________________ reaction is used to break the 
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limestoneOpt - 100s of free ppts from www.pptpoint.com...

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