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科学三年级下册第三单元第11课
《空气占据空间吗》
","type":1},{"img_height":1574,"img_size":90,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/11e43a80d37e252e5167d921dd365996__jpg.heic","img_width":1060,"is_origin":false,"source":0,"text":"电子课本
","type":1},{"img_height":1536,"img_size":87,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/22b966ce4e500cace3527f0cb4d5641f__jpg.heic","img_width":1024,"is_origin":false,"source":0,"type":1},{"img_height":1486,"img_size":91,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/7df6f4942cd9073213555851defe09d2__jpg.heic","img_width":1040,"is_origin":false,"source":0,"type":1},{"img_height":516,"img_size":51,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/2046a6053f68d3b086b4ec002d0f3d03__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":536,"img_size":71,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/798143b663ba70feb664691e07ff382f__jpg.heic","img_width":938,"is_origin":false,"source":0,"text":"“乌鸦喝水”的故事相信大家都听过吧。乌鸦用嘴衔了很多小石子,把石子放进瓶子里,石子沉入杯底,占据了原来一部分水的空间,瓶子里的水渐渐升高,乌鸦终于喝到水了。
","type":1},{"img_height":532,"img_size":63,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/593771b0cf87bee4cc8838358ca1351f__jpg.heic","img_width":950,"is_origin":false,"source":0,"type":1},{"img_height":530,"img_size":97,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/eb8de81ee8d3bf68f2b2b773b9e84a77__jpg.heic","img_width":970,"is_origin":false,"source":0,"text":"实验一:探究空气是否占据空间?
","type":1},{"source":0,"source_platform":"youku","type":3,"video_id":"XMTg3NDY2MDc0NA==","video_thumbnail":"https://vthumb.ykimg.com/05420408531257D96A0A4804D735A099"},{"img_height":540,"img_size":74,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/0026de9c0f2f13c1a2ac7441e3453f30__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":540,"img_size":91,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/e05d86a28708afc082c655d05c8b6d86__jpg.heic","img_width":954,"is_origin":false,"source":0,"text":"实验结论:玻璃杯竖直地倒扣到水中,杯底的纸团没有湿。因为空气占据了杯子的空间,水槽里的水无法进入玻璃杯,所以杯底的纸团没有湿。
实验二:验证空气能占据空间。
空气看不见,摸不着,我们有什么方法能证实“空气能占据空间”呢?
","type":1},{"img_height":540,"img_size":83,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/edf353589ec5faeb2b570c07dc7d5356__jpg.heic","img_width":960,"is_origin":false,"source":0,"text":"气球是大家非常熟悉的物品,我们吹气球时,气球发生了什么变化?是什么导致了这种变化?
如果我们将充满气的气球口松开,气球又会发生什么变化?将充满气的气球口对准乒乓球放气,乒乓球会怎样运动?
实验小结:空气进入,气球鼓起,气球内部空间被空气占据空间后变大了;空气排出去后,气体减少了,气球变小了。放气时若将气球口对准乒乓球,通过乒乓球的运动可以发现有气体从气球里跑出来。这些现象证明了空气占据一定的空间。
游戏:瓶内吹气球
","type":1},{"source":0,"source_platform":"youku","type":3,"video_id":"XMzk5NDM1OTk3Ng==","video_thumbnail":"https://vthumb.ykimg.com/054201015C2D6E8E8B747598BC47B8AE"},{"img_height":540,"img_size":93,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/93476e9c11b9e06e66b65e7083a96d9c__jpg.heic","img_width":950,"is_origin":false,"source":0,"type":1},{"img_height":536,"img_size":79,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/1db27f2c28a70eec1e9141a4fda919f5__jpg.heic","img_width":958,"is_origin":false,"source":0,"text":"实验小结:第一次吹气球时,瓶子里的空间已经被其他的空气占据了,所以气球吹不大。当我们用小刀在瓶底划几个小口后,瓶里的空气可以流出去,让出了瓶里的空间,这时气球就可以被吹大了。
生活中,空气占据空间的性质有哪些用途?
","type":1},{"img_height":540,"img_size":96,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/c02ebe795395f5f05063a81b60cd1e87__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":820,"img_size":93,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/6fd0e7bac72c7ec828459ec90ba04f26__jpg.heic","img_width":1044,"is_origin":false,"source":0,"type":1}]},"ext":{"id":135872515,"article_id":222741317,"ip":"223.77.83.29","origin_status":0,"edit_from":0,"client_type":2,"password_v2":"","uv":1,"font_id":0,"title_style":"","rich_text_title":"","gift_switch":1,"deleted_at":0,"recycle_expired_at":0,"share_with_nickname":0,"enable_watermark":0,"music_id":0,"music_source":-1,"_auto_update_time":"2025-03-24 22:17:22"},"extend":{"article_id":222741317,"enable_download":1}},"author":{"id":"5478372","nickname":"象山小学","head_img_url":"https://ss-mpvolc.meipian.me/users/5478372/8c422ddaccf443f8a329288d4c5ce8d8.jpg","column_visit":167,"signature":"","favorite_count":1,"follow_count":1,"follower_count":94,"famous_type":0,"autoplay_music":1,"text_preference":1,"client_type":0,"reward_word":"如果喜欢我的作品,请打赏鼓励哦!","member_type":0,"wechat_id":"ojq1tt_ZtzKG7sfbPnXjC0Hd4Qx0","country":"","province":"","city":"","career":null,"birthday":0,"gender":1,"reg_time":1476411515,"e_id":"","bedge_img":"","label_img":"","review_level":1,"enable_reward_switch":false,"enable_water_mark_switch":0,"plainNickname":"象山小学","member_status":1,"member_img":"","ext":null,"phone_num":"152****3123","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":"","im_id":"","yx_im_token":"","last_visit_time":1651626297,"ip_address":"117.150.224.130","device_id":"85fa5de925a2eae6:02:00:00:00:00:00","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":"112.2171800","latitude":"31.0432660","last_client_type":0,"level":0,"province_user":"湖北","city_user":"湖北","user_id":5478372,"qq_id":"","apple_id":"","badge_img_url":"","reward_url":"https://www.meipian.cn/wap/reward/view/index.html?mask_id=2ubqfglk&author_user_id=5478372&article_title=%E7%A7%91%E5%AD%A6%E4%B8%89%E5%B9%B4%E7%BA%A7%E4%B8%8B%E5%86%8C%E7%AC%AC%E4%B8%89%E5%8D%95%E5%85%83%E7%AC%AC11%E8%AF%BE++++++++++++++++++++%E3%80%8A%E7%A9%BA%E6%B0%94%E5%8D%A0%E6%8D%AE%E7%A9%BA%E9%97%B4%E5%90%97%E3%80%8B","memo_name":""},"content":[{"source":0,"text":"科学三年级下册第三单元第11课
《空气占据空间吗》
","type":1},{"img_height":1574,"img_size":90,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/11e43a80d37e252e5167d921dd365996__jpg.heic","img_width":1060,"is_origin":false,"source":0,"text":"电子课本
","type":1},{"img_height":1536,"img_size":87,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/22b966ce4e500cace3527f0cb4d5641f__jpg.heic","img_width":1024,"is_origin":false,"source":0,"type":1},{"img_height":1486,"img_size":91,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/7df6f4942cd9073213555851defe09d2__jpg.heic","img_width":1040,"is_origin":false,"source":0,"type":1},{"img_height":516,"img_size":51,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/2046a6053f68d3b086b4ec002d0f3d03__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":536,"img_size":71,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/798143b663ba70feb664691e07ff382f__jpg.heic","img_width":938,"is_origin":false,"source":0,"text":"“乌鸦喝水”的故事相信大家都听过吧。乌鸦用嘴衔了很多小石子,把石子放进瓶子里,石子沉入杯底,占据了原来一部分水的空间,瓶子里的水渐渐升高,乌鸦终于喝到水了。
","type":1},{"img_height":532,"img_size":63,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/593771b0cf87bee4cc8838358ca1351f__jpg.heic","img_width":950,"is_origin":false,"source":0,"type":1},{"img_height":530,"img_size":97,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/eb8de81ee8d3bf68f2b2b773b9e84a77__jpg.heic","img_width":970,"is_origin":false,"source":0,"text":"实验一:探究空气是否占据空间?
","type":1},{"source":0,"source_platform":"youku","type":3,"video_id":"XMTg3NDY2MDc0NA==","video_thumbnail":"https://vthumb.ykimg.com/05420408531257D96A0A4804D735A099"},{"img_height":540,"img_size":74,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/0026de9c0f2f13c1a2ac7441e3453f30__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":540,"img_size":91,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/e05d86a28708afc082c655d05c8b6d86__jpg.heic","img_width":954,"is_origin":false,"source":0,"text":"实验结论:玻璃杯竖直地倒扣到水中,杯底的纸团没有湿。因为空气占据了杯子的空间,水槽里的水无法进入玻璃杯,所以杯底的纸团没有湿。
实验二:验证空气能占据空间。
空气看不见,摸不着,我们有什么方法能证实“空气能占据空间”呢?
","type":1},{"img_height":540,"img_size":83,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/edf353589ec5faeb2b570c07dc7d5356__jpg.heic","img_width":960,"is_origin":false,"source":0,"text":"气球是大家非常熟悉的物品,我们吹气球时,气球发生了什么变化?是什么导致了这种变化?
如果我们将充满气的气球口松开,气球又会发生什么变化?将充满气的气球口对准乒乓球放气,乒乓球会怎样运动?
实验小结:空气进入,气球鼓起,气球内部空间被空气占据空间后变大了;空气排出去后,气体减少了,气球变小了。放气时若将气球口对准乒乓球,通过乒乓球的运动可以发现有气体从气球里跑出来。这些现象证明了空气占据一定的空间。
游戏:瓶内吹气球
","type":1},{"source":0,"source_platform":"youku","type":3,"video_id":"XMzk5NDM1OTk3Ng==","video_thumbnail":"https://vthumb.ykimg.com/054201015C2D6E8E8B747598BC47B8AE"},{"img_height":540,"img_size":93,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/93476e9c11b9e06e66b65e7083a96d9c__jpg.heic","img_width":950,"is_origin":false,"source":0,"type":1},{"img_height":536,"img_size":79,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/1db27f2c28a70eec1e9141a4fda919f5__jpg.heic","img_width":958,"is_origin":false,"source":0,"text":"实验小结:第一次吹气球时,瓶子里的空间已经被其他的空气占据了,所以气球吹不大。当我们用小刀在瓶底划几个小口后,瓶里的空气可以流出去,让出了瓶里的空间,这时气球就可以被吹大了。
生活中,空气占据空间的性质有哪些用途?
","type":1},{"img_height":540,"img_size":96,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/c02ebe795395f5f05063a81b60cd1e87__jpg.heic","img_width":966,"is_origin":false,"source":0,"type":1},{"img_height":820,"img_size":93,"img_url":"https://ss-mpvolc.meipian.me/users/5478372/6fd0e7bac72c7ec828459ec90ba04f26__jpg.heic","img_width":1044,"is_origin":false,"source":0,"type":1}],"mark":0,"gift":{"icon":"https://ss2.meipian.me/app/article_gift_flower_icon_v2.png","amount":0,"mix_icon":"","mix_persent":0,"display":1},"topic":{"has_vote":0,"vote_rank":0,"vote_count":0},"visitor":{"is_share":false,"visitor_id":0,"visitor_user_id":null,"from":null,"channel":null,"theme":null,"in_app":false,"from_web":false,"self_view":false,"timestamp":null,"sign":null,"is_from_app_launch":null,"show_praise":null,"praised":null,"wechat_sign":null,"token":null,"password_v2":null,"visitor_open_id":null,"share_depth":"","visitor_union_id":null,"ua_source":"web","mpuuid":"","isFan":0,"relation_type":0,"member_status":0,"member_img":"","head_attach_img":"","headwear":null,"request":{"attributes":{},"request":{},"query":{},"server":{},"files":{},"cookies":{},"headers":{}},"is_new_guest":0,"first_share_uid":0,"risk_cheat_info":"","is_cheat_risk":false,"page_visit_id":"PC_86163860167ef8d3797ef60.62821149","is_good":null,"auth_url":null,"from_auth_callback":0},"watermark":"?watermark/3/image/aHR0cDovL3N0YXRpYzItc3JjLml2d2VuLmNvbS9sb2dvd2F0ZXIucG5n/dy/50/text/QCDosaHlsbHlsI_lraY=/fontsize/320/dx/10/dy/30/fill/I0ZGRkZGRg==/text/576O56-H5Y-377yaNTQ3ODM3Mg==/fontsize/320/dx/10/dy/10/fill/I0ZGRkZGRg=="}; var detail = ARTICLE_DETAIL; window.model = { detail: ARTICLE_DETAIL }