苹果和橙子，哪个维生素C含量较高？在第三届中国少年科学院“青少年走进科学世界科学嘉年华”全国展示交流活动上，南岸区天台岗小学六年级学生陈彦初用实验得出结论，并获得化学类金奖。

Apples and oranges,Which vitamin C content is higher?In the third session of Chinese young academy of sciences"Teenagers into science and the world science carnival"Show the communication activities,Nanan distract roof sloping primary school grade 6 students ChenYanChu experiment conclusion,And obtain chemical category.

用高锰酸钾检验维C含量 With potassium permanganate test d C content

　　实验桌上分别放置着一杯苹果汁和橙汁，在综合科学实验比赛环节中，选手需用实验证明，到底哪杯果汁的维生素C含量更高。回想起科技老师讲过维生素C可让高锰酸钾溶液褪色的原理，陈彦初首先将蓝黑色的高锰酸钾溶液，以同样剂量分别滴入3个试管中。第1个试管作为参照物，再在第2、3个试管中滴入等量的苹果汁和橙汁，然后摇晃试管使两种液体融合。

The experiment table placed respectively with a glass of apple juice and orange juice,In the comprehensive scientific experimental game in the link,Players need experiment,Which cup of fruit juice of vitamin C content is higher.Recall technology teachers said vitamin C can make potassium permanganate solution faded principle,ChenYanChu the blue-black potassium permanganate solution,With the same doses were dropping three in vitro.The first test tube as the point of reference,Then in the second/3 in vitro drop into the same amount of apple juice and orange juice,Then shake test tube make the two kind of liquid fusion.

　　“这时再来比较第2个和第3个试管，根据维生素C可让高锰酸钾褪色的原理，颜色深的维生素C含量较少，颜色浅的含量较多。相对于苹果汁，所以呈现较浅色的橙汁维C含量更高。”陈彦初还说明，之所以把第1个试管作为参照物，是因为如果第2、3试管出现与之相同的蓝黑色，就说明实验出现了异常，需要重做。

"At this time and to compare the second and third test tube,According to the vitamin C can let the principle of potassium permanganate fade,The color depth of vitamin C content is less,The content of shallow color more.Relative to apple juice,So has a light orange juice vitamin C content is higher."ChenYanChu also that,Is the first test tube as the point of reference,Because if the second/3 test tube appear with the same blue black,Means that the experiment appeared abnormal,Need to redo.

经常在家做小实验 Often at home doing experiments

　　对于儿子在科技活动上取得的成绩，妈妈谷明荔并不意外。她说，儿子平时就喜欢看科技方面的书籍，3年级时逐渐在实验方面显露兴趣。

For the son in the science and technology activities achieved,Mother GuMingLi is not accidental.She said,Son usually like to watch science and technology books,3 grade gradually in an experiment show interest.

　　“自从生日要求买一套生物实验箱作为礼物后，儿子就常在家里做些小实验，每当我出门买菜时，他就要求买些紫圆白菜（紫甘蓝）和苏打水回来做实验。”谷明荔记得，有一次儿子的衣服上被同学不小心划上了圆珠笔，“他就自己拿酒精开始擦衣服，没多会工夫，圆珠笔还真被擦干净了。”

"Since birthday for a set of biological experiment box after as a gift,Sons are often in the home to do some experiments,Every time when I went out to buy food,He asked to buy some purple cabbage(Purple cabbage)And soda water back doing the experiment."GuMingLi remember,Have a son's clothes were students not to be off the ball pen,"He will take their alcohol began to clean clothes,At no time,Ballpoint pen was wiped clean."

科技激发孩子上学热情 Science and technology stimulate enthusiasm children to school

　　“国内的不少中小学生总被认为缺少创造能力，鼓励学生多参加科技比赛，是希望提高学生的创新动手能力和实际解决问题的能力。”天台岗小学专门负责科技的老师邓继波介绍，学校共有9名专职科技教师，每个班级一周共开设3节科技课。学校每个月定期举办一场主题性的科技活动，并不定时地邀请科技方面的专家来学校开讲座。“科技活动不仅增强了学生们的自信心，也激发了他们来学校上学的热情。”重庆晨报见习记者 刘冰鑫

"The domestic many primary and middle school students are always think that the lack of creativity,Encourage students to take part in science and technology competition,Is to improve students' innovative ability and practical ability to solve problems."Roof sloping elementary school specialized responsible for science and technology teacher DengJiBo is introduced,There are 9 full-time school teachers of science and technology,Each class were opened a week 3 day science class.Each month we regularly organize a thematic science and technology activities,Does not regularly invite technology experts to school open lecture."Science and technology activities not only to enhance the students' confidence,Also inspired them to the enthusiasm of the school."Chongqing morning paper reporter LiuBingXin apprentice