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哈喽 小朋友们我们又见面啦,今天我们要做什么实验呢,一起来看看吧🧐
老师带来了一个水过滤器套件,里面有3种不同的颗粒,小朋友们你们看看这些颗粒有什么异同点呢?
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"1f0a0c72f5d8a20e44efb896b7d8cfb7"},"img_del":0,"img_height":268,"img_url":"https://ss-mpvolc.meipian.me/users/107743007/672283115dbbdceb9dbf31fad8c0ec3f__jpg.heic","img_width":400,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"小朋友们都头脑风暴的积极发言,并大胆地说的自己看到并感觉到的👍
👩🏫:其实这些颗粒是:花岗岩石子、活性炭和石英砂;
由于最近天气一直都在下雨,我们湘江的水变得特别浑浊,老师这里有一杯浑浊和清澈的水,今天我们解决怎样得到清澈的水呢❓
我们利用这些不同的颗粒物质,来解决水的净化问题😊
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"6b822659dbecb0a74014cc6f329cc19b"},"img_del":0,"img_height":376,"img_url":"https://ss-mpvolc.meipian.me/users/107743007/a6bb1cd9b2b7507113df988adf0bc0f1__jpg.heic","img_width":500,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"🧐想得到清澈的水,意味着要把水中的脏东西清除出去,这杯脏水中含有各种各样的污垢颗粒,大小不一,我们可以使用过滤法。
由于我们没有过滤网,这些颗粒可以用来代替过滤网吗⁉️
有小朋友说可以,有小朋友说不可以👍
其实颗粒之间有空隙,这些颗粒堆积起来的空隙大小不一样,形状和粗糙程度也不同,它可以说就是一个个不同孔径的过滤网。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"a7d4f037466a4f785b5658f92f086439"},"img_del":0,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"🌟首先我们将花岗岩石子做成了一个筛子,试验一下过滤效果,我们会发现仅仅过滤掉一些大的污染物。过滤效果不好🙅
🤔如何设计过滤器,才能得到清澈的水,需要合理规划‼️
不同的颗粒怎样来过滤水中的杂质⁉️
不同的颗粒可以过滤掉什么样的杂质?⁉️
如何组合才能得到最纯净的水⁉️
我们一起来挑战吧✊
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🌟我们得出最优的顺序:先是花岗岩石子、再是石英砂、花岗岩石子、然后是活性炭,最后是石英砂。
石英砂的作用是为了过滤活性炭中留下来的黑色微小颗粒。
宝贝们也可以根据自己的过滤效果决定,这样大家互相之间也可以形成对比哦😝
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泥水倒入装有颗粒的塑料管内,水中的污垢颗粒会在颗粒的表面和缝隙中滞留和沉积,水分子能够通过空隙,从而过滤污垢。
🌟活性炭具有很强的吸附作用,它有很多微小的孔洞和沟壑,能够吸附水中非常微小的土壤颗粒。
我们做的自制净水器的过滤层有滤纸、活性炭、沙子等,经过这几层材料的过滤,污水就变得清澈些了!
生活中干净的自来水是溪水通过自来水厂过滤后而成的,需要经过取水、沉淀、过滤、吸附、消毒等一系列过程‼️
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"5d4b643a0bfdc30e7f84b0a0bca59c2c"},"img_del":0,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"
好啦,我们今天的实验结束啦,小朋友们我都要爱惜资源,节约用水哦,我们下周见💐
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0}]},"ext":{"id":357665916,"article_id":401503754,"ip":"113.222.188.150","origin_status":0,"edit_from":0,"client_type":1,"password_v2":"","uv":1,"font_id":0,"title_style":"","rich_text_title":null,"gift_switch":1,"deleted_at":0,"recycle_expired_at":0,"share_with_nickname":1,"enable_watermark":2,"music_id":15808239,"music_source":1,"_auto_update_time":"2024-06-19 14:23:33","real_lasted_visit_time":0},"extend":{"id":151155832,"article_id":401503754,"enable_download":1,"cover_width":500,"cover_height":375}},"author":{"id":107743007,"nickname":"J、简","head_img_url":"https://ss-mpvolc.meipian.me/users/107743007/77a8e01c-2d07-4cf2-9ac3-577d59bc931e.jpg","column_visit":1,"signature":"","favorite_count":0,"follow_count":0,"follower_count":8,"famous_type":0,"autoplay_music":1,"text_preference":1,"client_type":3,"reward_word":"如果喜欢我的作品,请打赏鼓励哦!","member_type":0,"wechat_id":"ojq1ttycJiLNle37YbQ82GC1szEs","country":"马拉维","province":"","city":"","career":null,"birthday":0,"gender":0,"reg_time":1585637411,"e_id":"","bedge_img":"","label_img":"","review_level":1,"enable_reward_switch":false,"enable_water_mark_switch":0,"plainNickname":"J、简","member_status":0,"member_img":"","ext":null,"phone_num":"155****6702","head_attach_img":null,"badge":null,"onlive":false,"qualification":null,"biz_info":{"is_biz_user":false,"share_domains":[]},"headwear":{"icon":"","animation":"","config":{},"param":{}},"cover_img_url":"","weibo_id":"","vwen_id":"1d9a879776e72acb4d6e6c6bfec17cb9","im_id":"","yx_im_token":"","last_visit_time":1750126164,"ip_address":"183.214.126.63","device_id":"65db4ec076814f2fa3bb0e6248fa1243","reviewer":0,"review_time":0,"account_state":0,"balance":0,"last_contribution_time":0,"member_expire_time":0,"member_qq_group":0,"web_has_login":0,"longtitude":"0.0000000","latitude":"0.0000000","last_client_type":1,"level":0,"province_user":"","city_user":"","user_id":107743007,"qq_id":"","apple_id":"","badge_img_url":"","reward_url":"https://www.meipian.cn/wap/reward/view/index.html?mask_id=54g4yvrc&author_user_id=107743007&article_title=%E6%85%A7%E8%B0%B7%E9%98%B3%E5%85%89%E7%A7%91%E5%AD%A6%E5%AE%9E%E9%AA%8C1%EF%B8%8F%E2%83%A3%E7%8F%AD%EF%BD%9E%E3%80%8A%E8%BF%87%E6%BB%A4%E5%87%80%E6%B0%B4%E5%99%A8%F0%9F%92%A6%E3%80%8B","memo_name":""},"content":[{"audio_del":0,"ext":{"unique_id":"f1d6752ba7f4ea5d3508429536e0bca1"},"img_del":0,"img_height":436,"img_url":"https://ss-mpvolc.meipian.me/users/107743007/ab9cdafd0925dae14762421d20422e72__jpg.heic","img_width":582,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"哈喽 小朋友们我们又见面啦,今天我们要做什么实验呢,一起来看看吧🧐
老师带来了一个水过滤器套件,里面有3种不同的颗粒,小朋友们你们看看这些颗粒有什么异同点呢?
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"1f0a0c72f5d8a20e44efb896b7d8cfb7"},"img_del":0,"img_height":268,"img_url":"https://ss-mpvolc.meipian.me/users/107743007/672283115dbbdceb9dbf31fad8c0ec3f__jpg.heic","img_width":400,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"小朋友们都头脑风暴的积极发言,并大胆地说的自己看到并感觉到的👍
👩🏫:其实这些颗粒是:花岗岩石子、活性炭和石英砂;
由于最近天气一直都在下雨,我们湘江的水变得特别浑浊,老师这里有一杯浑浊和清澈的水,今天我们解决怎样得到清澈的水呢❓
我们利用这些不同的颗粒物质,来解决水的净化问题😊
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"6b822659dbecb0a74014cc6f329cc19b"},"img_del":0,"img_height":376,"img_url":"https://ss-mpvolc.meipian.me/users/107743007/a6bb1cd9b2b7507113df988adf0bc0f1__jpg.heic","img_width":500,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"🧐想得到清澈的水,意味着要把水中的脏东西清除出去,这杯脏水中含有各种各样的污垢颗粒,大小不一,我们可以使用过滤法。
由于我们没有过滤网,这些颗粒可以用来代替过滤网吗⁉️
有小朋友说可以,有小朋友说不可以👍
其实颗粒之间有空隙,这些颗粒堆积起来的空隙大小不一样,形状和粗糙程度也不同,它可以说就是一个个不同孔径的过滤网。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"ext":{"unique_id":"a7d4f037466a4f785b5658f92f086439"},"img_del":0,"location_del":0,"sell_del":0,"source":0,"source_platform":"local","splicing_template_id":0,"text":"🌟首先我们将花岗岩石子做成了一个筛子,试验一下过滤效果,我们会发现仅仅过滤掉一些大的污染物。过滤效果不好🙅
🤔如何设计过滤器,才能得到清澈的水,需要合理规划‼️
不同的颗粒怎样来过滤水中的杂质⁉️
不同的颗粒可以过滤掉什么样的杂质?⁉️
如何组合才能得到最纯净的水⁉️
我们一起来挑战吧✊
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🌟我们得出最优的顺序:先是花岗岩石子、再是石英砂、花岗岩石子、然后是活性炭,最后是石英砂。
石英砂的作用是为了过滤活性炭中留下来的黑色微小颗粒。
宝贝们也可以根据自己的过滤效果决定,这样大家互相之间也可以形成对比哦😝
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泥水倒入装有颗粒的塑料管内,水中的污垢颗粒会在颗粒的表面和缝隙中滞留和沉积,水分子能够通过空隙,从而过滤污垢。
🌟活性炭具有很强的吸附作用,它有很多微小的孔洞和沟壑,能够吸附水中非常微小的土壤颗粒。
我们做的自制净水器的过滤层有滤纸、活性炭、沙子等,经过这几层材料的过滤,污水就变得清澈些了!
生活中干净的自来水是溪水通过自来水厂过滤后而成的,需要经过取水、沉淀、过滤、吸附、消毒等一系列过程‼️
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好啦,我们今天的实验结束啦,小朋友们我都要爱惜资源,节约用水哦,我们下周见💐
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