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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,#,2,食物的营养,(人教与鄂教版)三年级科学上册第一单元,2 食物的营养(人教与鄂教版)三年级科学上册第一单元,1,三年级上册科学ppt课件:1,2,1,、,猜一猜:这些食物中含有哪些营养成分,?,1、猜一猜:这些食物中含有哪些营养成分?,3,1,、,猜一猜:这些食物中含有哪些营养成分?,1、猜一猜:这些食物中含有哪些营养成分?,4,2,、实验器材,使用酒精灯时,千万要注意安全 !,安全警示,2、实验器材使用酒精灯时,千万要注意安全 !安全警示,5,温馨提示:,1,、点燃酒精灯要用火柴(火机),绝对禁止用酒精灯引燃另一只酒精灯。,2,、绝对禁止向燃着的酒精灯里添加酒精。,3,、用完酒精灯后,必须用灯帽盖灭,不可用嘴去吹,4,、不要碰倒酒精灯。万一酒精在桌上燃烧,应立刻用湿抹布扑盖。,5,、滴碘酒时不要滴得太多,只要滴一两滴就够了,6,、组内交流声音不要太大,3,、分组动手实验,温馨提示:3、分组动手实验,6,食物的营养,观察记录表,食物名称,按压后,滴碘酒后,用火烧后,食物的营养观察记录表食物名称按压后滴碘酒后用火烧后,7,0,9,0,0,0,0,1,8,7,6,5,4,3,2,1,5,9,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090000187654321590049876543210,8,0,9,0,0,0,9,8,7,6,5,4,3,2,1,5,8,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090009876543215800498765432103,9,0,9,0,0,0,8,8,7,6,5,4,3,2,1,5,7,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090008876543215700498765432103,10,0,9,0,0,0,7,8,7,6,5,4,3,2,1,5,6,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090007876543215600498765432103,11,0,9,0,0,0,6,8,7,6,5,4,3,2,1,5,5,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,0,090006876543215504987654321039,12,0,9,0,0,0,5,8,7,6,5,4,3,2,1,5,4,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090005876543215400498765432103,13,0,9,0,0,0,4,8,7,6,5,4,3,2,1,5,3,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090004876543215300498765432103,14,0,9,0,0,0,3,8,7,6,5,4,3,2,1,5,2,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090003876543215200498765432103,15,0,9,0,0,0,2,8,7,6,5,4,3,2,1,5,1,0,0,4,9,8,7,6,5,4,3,2,1,0,3,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,2,1,9,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,0,Hours,Minutes,Seconds,Insert Text Here,090002876543215100498765432103,16,探究实验时间到!,探究实验时间到!,17,食物的营养,观察记录表,食物名称,按压后,滴碘酒后,用火烧后,食物的营养观察记录表食物名称按压后滴碘酒后用火烧后,18,归纳食物的营养成分,食物名称,实验方法,实验现象,瘦肉、鸡蛋,鱼、虾、豆制品,用火烧,烧头发的气味,面包、土豆,馒头、米饭、,玉米,滴碘酒,变成蓝色,肥肉、花生、,核桃、芝麻,在纸上划、按压,油迹,蛋白质,淀粉,脂肪,食物的,营养成分,归纳食物的营养成分食物名称实验方法实验现象瘦肉、鸡蛋用火烧烧,19,食物所含的营养成分非常丰富,通常分为:,淀粉、,蛋白质、脂肪、维生素、,水和,矿物质。,食物所含的营养成分非常丰富,通常分为:淀粉、,20,清河完全小学食堂食谱,周一:,按不同的营养成分分类:,米饭,炒瘦肉,炒青菜,土豆丝,西红柿汤,水煮鱼,馒头,红烧肉,蛋白质,维生素和,矿物质,脂肪,淀粉,清河完全小学食堂食谱周一:按不同的营养成分分类:米饭炒瘦肉炒,21,营养儿歌,米饭白白馒头香,,窝头尖尖面条长,,萝卜白菜营养好,,吃得多来长得壮,,蔬菜粮食营养全,样样我都不挑食!,不挑食呀,!,不挑食!,营养儿歌,22,作业:请同学们为自己设计一份营养的午餐。,作业:请同学们为自己设计一份营养的午餐。,23,小小科学家们,再见!,小小科学家们,再见!,24,
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