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科学小实验可以培养孩子们的动手能力,最重要的是可以增加孩子们对科学的兴趣。在小实验中,幼儿不仅能玩得开心,幼儿的动手、动脑能力、解决问题能力都得到了提高。宅家的你,快来和爸爸妈妈一起跟着我们行动起来吧!
","type":1},{"audio_music_id":0,"source":0,"text":"材料准备:
透明的有一定深度的杯子、水、两个或多个橘子
游戏玩法:
将杯子里面装上水,将没剥皮的橘子放入杯中,会发生什么呢?橘子漂浮起来了,动动小手,无论怎么把橘子按下水里,它都会自己漂浮上来哦。
","type":1},{"audio_music_id":0,"img_height":740,"img_size":59,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/901e30f5bb05cca590975aa6897d994f__jpg.heic","img_width":804,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvOTAxZTMwZjViYjA1Y2NhNTkwOTc1YWE2ODk3ZDk5NGZfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"我们把橘子皮剥了再试试看呢?哇,剥了皮的橘子一下子就沉到水底去了呢!
","type":1},{"audio_music_id":0,"img_height":744,"img_size":65,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/1ad414aabe6ff7106398ba9da9f6d379__jpg.heic","img_width":800,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvMWFkNDE0YWFiZTZmZjcxMDYzOThiYTlkYTlmNmQzNzlfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"再来放一个没剥皮的橘子看看,对比很明显了,没剥皮的橘子漂浮着,剥了皮的橘子却沉下去了。
","type":1},{"audio_music_id":0,"img_height":740,"img_size":83,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/bb4f4ae443e4a662b6875c91b11fb4f3__jpg.heic","img_width":830,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvYmI0ZjRhZTQ0M2U0YTY2MmI2ODc1YzkxYjExZmI0ZjNfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"img_height":1086,"img_size":69,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/afc0d125028056b2f10f52db579134bb__jpg.heic","img_width":830,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvYWZjMGQxMjUwMjgwNTZiMmYxMGY1MmRiNTc5MTM0YmJfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"咦?怎么剥了皮的橘子重量减轻了,反而沉到水底了呢
科学原理:
原来这是因为浮力现象。一个物体能不能浮在水面上,取决于它的重量是否比相同体积的水轻。没剥皮的橘子,橘皮里有许多气泡孔,充满了空气;橘子内部也有空气,它们就像大大小小的救生圈一样包裹着橘子,使得橘子整体的重量比相同体积的水轻,从而漂浮在水面上;而剥了皮的橘子就没那么好运了,橘子瓣里大部分是水,还有固体物,整体重量比相同体积的水重,所以会沉到水里。
爸爸妈妈还可以带孩子一起试试看家中其他的水果,看看它们是否也会有同样的小秘密哦?
看完了这个小实验,感觉怎么样?材料随手可得,操作起来简单又安全。宅在家的日子里,动动手,动动脑,丰富自己,安全大家,快快行动起来吧!
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","type":1},{"audio_music_id":0,"source":0,"text":"材料准备:
透明的有一定深度的杯子、水、两个或多个橘子
游戏玩法:
将杯子里面装上水,将没剥皮的橘子放入杯中,会发生什么呢?橘子漂浮起来了,动动小手,无论怎么把橘子按下水里,它都会自己漂浮上来哦。
","type":1},{"audio_music_id":0,"img_height":740,"img_size":59,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/901e30f5bb05cca590975aa6897d994f__jpg.heic","img_width":804,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvOTAxZTMwZjViYjA1Y2NhNTkwOTc1YWE2ODk3ZDk5NGZfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"我们把橘子皮剥了再试试看呢?哇,剥了皮的橘子一下子就沉到水底去了呢!
","type":1},{"audio_music_id":0,"img_height":744,"img_size":65,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/1ad414aabe6ff7106398ba9da9f6d379__jpg.heic","img_width":800,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvMWFkNDE0YWFiZTZmZjcxMDYzOThiYTlkYTlmNmQzNzlfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"再来放一个没剥皮的橘子看看,对比很明显了,没剥皮的橘子漂浮着,剥了皮的橘子却沉下去了。
","type":1},{"audio_music_id":0,"img_height":740,"img_size":83,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/bb4f4ae443e4a662b6875c91b11fb4f3__jpg.heic","img_width":830,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvYmI0ZjRhZTQ0M2U0YTY2MmI2ODc1YzkxYjExZmI0ZjNfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"img_height":1086,"img_size":69,"img_url":"https://ss-mpvolc.meipian.me/users/21704900/afc0d125028056b2f10f52db579134bb__jpg.heic","img_width":830,"is_origin":false,"source":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMjE3MDQ5MDAvYWZjMGQxMjUwMjgwNTZiMmYxMGY1MmRiNTc5MTM0YmJfX2pwZy5oZWlj/nickname/5L6d/userid/MjE3MDQ5MDA=/sign/a65f337b0b4ab97445de1c64a338d59b"},{"audio_music_id":0,"source":0,"text":"咦?怎么剥了皮的橘子重量减轻了,反而沉到水底了呢
科学原理:
原来这是因为浮力现象。一个物体能不能浮在水面上,取决于它的重量是否比相同体积的水轻。没剥皮的橘子,橘皮里有许多气泡孔,充满了空气;橘子内部也有空气,它们就像大大小小的救生圈一样包裹着橘子,使得橘子整体的重量比相同体积的水轻,从而漂浮在水面上;而剥了皮的橘子就没那么好运了,橘子瓣里大部分是水,还有固体物,整体重量比相同体积的水重,所以会沉到水里。
爸爸妈妈还可以带孩子一起试试看家中其他的水果,看看它们是否也会有同样的小秘密哦?
看完了这个小实验,感觉怎么样?材料随手可得,操作起来简单又安全。宅在家的日子里,动动手,动动脑,丰富自己,安全大家,快快行动起来吧!
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