科科学学义务教育教科书一年级下册河南教育报刊社编写郑州写给同学们的话xiitnxumendehu可爱的动物kidednw，美丽的植物mildezhw，肥沃的土壤fiwdetrn，神奇的磁shnqdec铁ti，还有其他有生命的hiyuqtyushnmnde、没有生命的东西miyushnmndednxi，组成了zchnle我们赖以生存的大自然wmenliyshncndedzrn。大自然是美好和神奇的dzrnshmihohshnqde。大自然中有许许多多我dzrnzhnyuxxduduw们想知道的问题menxinzhdodewnt。科学课将引领我们探究世界的奥kxukjinynlnwmentnjishjideo秘m，领略生命的美妙和珍贵lnlshnmndemimiohzhnu。让我们带着自己的问题rnwmendizhezjdewnt，和探探htntn、究究jijiu、奇奇qqi、妙mio妙一起走进科学课堂吧mioyqzujnkxuktnb！奇奇探探妙妙究究中国科学院院士目录ml准备单zhnbidn元yun分工合作找fnnhzuzho证据zhnj1第一单dydn元yun水与溶解shuyrnji51水的特征shudetzhn62水和盐的故事shuhyndeshi93水shu能nn溶解哪些物质rnjinxiwzh11第二单drdn元yun植物zhw“保育员boyyun”141认识常rnshichn见植物jinzhw152缺qu水的吊兰shudedioln173阳yn光和凤unhfn仙xin花hu20第三单dsndn元yun太阳与月tiynyyu亮lin231太阳和我们tiynhwmen242太阳对动植物的影tiyndudnzhwdeyn响xin273多du变的月bindeyu亮lin29第四单dsdn元yun空气knq321空气知多knqzhdu少sho332找zho空气knq363观察空气unchknq39反思单fnsdn元yun我们也在找wmenyzizho证据zhnj42准备单元zhnbidnyun分工合作找证据分工合作找证据fnnhzuzhozhnj你们猜，动物乐园里几条腿的动物多？2条腿的动物多。我觉得4条腿的多。让我们来搜集证据吧！在一分钟内ziyfnzhnni，数出shch2条腿和tiotuh4条腿的动物各有几tiotudednwyuj种zhn。记录单2条腿的动物有种。4条腿的动物有种。一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一请在规定时间内完成观察、记录。第一关dyun它有几条腿tyujtiotu游戏1第二关drun在一分钟内ziyfnzhnni，数出shch2条腿tiotu、4条腿和tiotuh6条腿的动物各tiotudednw有几种yujzhn。记录单2条腿的动物有种。4条腿的动物有种。6条腿的动物有种。2我们闯到了第几关wmenchundoledjun？有什么闯关经验yushnmechununjnyn？怎样才能更快过关呢？我们分工合作会更快更准！我们来制订一个计划吧。我第三关没有在规定时间内完成。“它有几条腿”活动分工表小组成员探探究究奇奇妙妙任务分工、记录数2条腿的动物有几种数4条腿的动物有几种数6条腿的动物有几种小贴士分工是为了更好地合作。一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一第三关我们将要数20种动物！一一一一一一一一一一一一一一一一反思制订计划3事实证据按照分工继续闯关nzhofnnjxchunun，比较前后搜集到的证据bjioqinhusujdodezhnj，看看哪一次的观察又快又准knknnycdeunchyukuiyuzhn。记录单12条腿的动物有5种。4条腿的动物有7种。6条腿的动物有种。分工前的观察记录单22条腿的动物有6种。4条腿的动物有7种。6条腿的动物有5种。分工后的观察想一想xinyixin，为什么分工合作能更快更好地完wishnmefnnhzunnnkuinhodewn成任务chnrnwu？一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一好的计划是成功的保障。4水与溶解shuyrnji第一单元dydnyun特征颜色是否透明气味味道研究方法用眼睛看用眼睛看用鼻子闻用舌头尝研究结果1水shu的de特征tzhn水和其他液体有什么不同呢？我们先来研究一下水的特征吧！一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一“水的特征”研究计划小贴士有计划地进行观察，会观察得更全面、细致、准确。这5个瓶子里分别装着水、牛奶、盐水、醋、葡萄糖水，标签没了，哪一瓶是水呢？提出问题制订计划6一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一水的特征shudetzhn丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂丂一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一水有没有颜色shuyumiyuyns？水是透明的吗shushtumndem？水有没有气味shuyumiyuqwi？水有没有味道shuyumiyuwido？一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一用舌头尝一定要在老师的指导下进行！水是一种没有颜色shushyzhnmiyuyns、透明tumn、没有气味miyuqwi、没有miyu味道的物质widodewzh。观察7号是白色的，号是褐色的，肯定都不是水！对！它们都不透明，而且号闻起来还有酸味！号味道是咸的现在xinzi，我们能找出哪瓶是水了wmennnzhochnpnshshule！我知道哪瓶是水了！观察unch5个瓶子中物质的特征并记录下来pnzizhnwzhdetzhnbnjlxili。特征有颜色透明有气味有味道事实证据得出结论82水和盐的故事shuhyndeshi小红军巧送盐xiohnjnqiosnyn盐能“化”到水里吗？小红军把盐藏哪里了？买到盐了。不准带盐过关！把盐藏起来。哈哈，顺利过关！是把盐“化”到水里了吗？11223344阅读提出问题9“把盐化到水里”研究计划倒一杯水。取一小勺盐，放进水里。观察。1准zhn备好一bihoy杯水bishu。2向水中xinshuzhn倒入一小勺盐doryxioshoyn。3看到的盐kndodeyn慢mn慢mn变少binsho。4最后zuhu，盐全ynqun都看不见了duknbjinle。盐真的“化”到水里了！一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一盐溶解在水里看不见了。小贴士如果发现盐放多了，可以再加点水试试！把盐byn“化hu”到水里doshul实验制订计划制订计划103水能溶解哪些物质shunnrnjinxiwzh还有哪些物质能溶解在水里呢hiyunxiwzhnnrnjizishulne？一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一“水能溶解哪些物质”研究计划物质味精沙子食用油白糖猜想验证这些物质能溶解吗？让我们先猜一猜，再去验证。沙子能溶解吗？我觉得白糖能！油好像味精沙子食用油白糖提出问题制订计划11材料超市水能溶解哪些物质shunnrnjinxiwzh把我们观察的结果用线连一连bwmenunchdejiuynxinlinyilin。有些物质yuxiwzh（像食盐xinshyn、味精wijn、白糖等bitndn）能够溶解nnurnji在一定量的水里ziydnlindeshul，有些物质yuxiwzh（像食用油xinshynyu、沙子等shzidn）很难溶解在水里hnnnrnjizishul。能溶解很难溶解白糖红糖食用油沙子小贴士猜想需要用事实来验证。味精沙子食用油白糖味精食用油沙子白糖实验得出结论12动物生存离不开氧气dnwshncnlbkiynq，小鱼需要的氧气从哪xioyxyodeynqcnn里来lli？原来yunli，氧气也能溶解到水里ynqynnrnjidoshul！想一想xinyixin，生活中哪些地方用到了溶解shnhuzhnnxidfnyndolernji？拓展活动阅读13植物zhw“保育员boyyun”第二单元drdnyun这草坪真好！这花儿真香啊！小树小树快快长！1认识常见植物rnshichnjinzhw校园里的植物xioyunldezhw校园的土壤里生长着哪些植物xioyundetrnlshnzhnzhenxizhw？我们一起wmenyq来认一认lirnyirn。松树的叶子尖尖的，像针一样。桃花可真漂亮啊！狗尾草长着一条“狗尾巴”！牡丹花又大又漂亮！观察15抢认植物qinrnzhw我们还认识哪些植物wmenhirnshinxizhw？看谁认得多knshirndedu。稻子！不对！是小麦！我一看麦穗儿就知道了！我们是怎样认出这些植物的wmenshznynrnchzhxizhwde？向日葵的大圆盘里有很多小花。法国梧桐的叶子像手掌一样。我知道花生是长在地下的。我们通常通过叶wmentnchntnuy、花hu、果实的特征来辨认ushdetzhnlibinrn植物zhw。小贴士稻穗麦穗要善于表达，也要乐于倾听。小贴士游戏表达交流162缺水的吊兰qushudedioln植物角里的吊兰怎么蔫了zhwjioldediolnznmeninle？一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一我们试着救活它们吧！是不是被虫子咬了？我猜它们一定是“渴”了。我们来做个实验吧！不会，我都找过了，没有虫子。小贴士大胆猜想，多角度思考问题。提出问题猜想假设17按照老师的要求nzholoshdeyoqi，做好计划和分工zuhojhuhfnn。也不能多浇哟。我来负责浇水。我负责记录。我们每天要浇一次水。“植物和水”研究计划浇水次数浇水时间浇水量组长浇水记录1号盆每天1次每天上午10点每次1勺探探奇奇妙妙2号盆不浇水小贴士按计划进行探究，才能顺利完成任务。制订计划181号盆2号盆按照研究计划给植物浇水nzhoynjijhuizhwjioshu，并记录观察结果bnjlunchjiu。时间第一天一周后1号盆没有变化变好2号盆没有变化更蔫了这盆每天浇水，已经长出新叶了！不浇水的快要死了植物需要适量的水来维持生存和生长zhwxyoshlindeshuliwichshncnhshnzhn。1号盆2号盆事实证据得出结论193阳光和凤仙花ynunhfnxinhu为什么阳台上wishnmeyntishn的凤仙花绿绿的defnxinhullde、壮壮的zhunzhunde植物角的凤仙花却看起来蔫蔫的zhwjiodefnxinhuquknqlininninde？一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一植物生长需要阳光吗？我们来研究一下吧。是不是又忘浇水了？那是怎么回事呢？我知道了，阳光照不到植物角。不是的，每天都浇了。提出问题猜想假设20根据研究计划njynjijhu，做好小组分工zuhoxiozfnn。放置地点浇水次数浇水量组长1号盆有阳光的窗台上每天1次每次1勺探探2号盆不透光的纸箱里“植物和阳光”研究计划把一棵凤仙花放在窗台上，另一棵用纸箱罩起来。每天都给它们浇水。我们用凤仙花来做实验吧。制订计划21按n照zho研究计划进行实验ynjijhujnxnshyn，并做好观bnzuhoun察和记录chhjl。1号盆2号盆时间第一天一周后1号盆没有变化2号盆没有变化交流我们的实验结果和发现jioliwmendeshynjiuhfxin。植物需要阳光来维持生存和生长zhwxyoynunliwichshncnhshnzhn。窗台上的凤仙花长得更壮！究究的想法是对的。事实证据得出结论22太阳与月亮tiynyyulin第三单元dsndnyun1太阳和我们tiynhwmen关于太阳unytiyn，我们都知道什么wmenduzhdoshnme？我知道太阳能够发光，因为白天我们能够看清东西。我猜想太阳还能发热，因为太阳能够发热吗tiynnnufrm？让我们一起来搜集证据rnwmenyqlisujzhnj吧b。戴上太阳帽感觉有什么不一样dishntiynmonjuyushnmebyyn？好晒啊！不那么晒了！安全提示不要直视太阳，以免伤害眼睛。事实证据提出问题观察向阳处和背阴处unchxinynchhbiynch24摸一摸向阳处和背阴处的地面myimxinynchhbiynchdedmin，感觉有什么njuyushnme不同btn？这里的地面热乎乎的。这里不热。摸m一yi摸m，两个塑料袋中的linsliodizhnde水有shuyu什么不一样shnmebyyn？10分钟了，快来摸摸看！这袋热了点。我感觉向阳处热，背阴处凉。我发现阳光下塑料袋中的水热一些。太阳能够发光发热tiynnnufunfr。一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一把自己的发现如实地讲出来。一一一一一一一一一一一一一一一一一一一一这袋和刚才差不多。得出结论通tn过以uy上shn观察unch，我们有哪些发现wmenyunxifxin？25太阳对人类生活的影响tiyndurnlishnhudeynxin说一说shuyishu，人们这样做与太rnmenzhynzuyti阳yn有什么关系yushnmeunx。太阳对人类生活有着重要影响tiyndurnlishnhuyuzhezhnyoynxin。观察262太阳对动植物的影响tiyndudnzhwdeynxin太阳能够发光发热tiynnnufunfr，这对动植物有哪些影响zhdudnzhwyunxiynxin？植物生长需要阳光，我们以前做过实验!我觉得我家的小狗不喜欢太阳。咱们一起来搜集证据吧。植物的生长与太阳有什么关zhwdeshnzhnytiynyushnmeun系x？幼苗生长yumioshnzhn结出果实jichush果实变色ushbins大棚种植dpnzhnzh事实证据提出问题太阳对动植物的影响tiyndudnzhwdeynxin27动物的生存与太阳有什么关dnwdeshncnytiynyushnmeun系x？接龙游戏jilnyux每人说出一个例子mirnshuchylzi，证明太阳对动物zhnmntiyndudnw、植物zhw和人类生活有着重要影响hrnlishnhuyuzhezhnyoynxin。没有太阳，稻子不能生长，我们就没有大米吃。太阳把我晒黑了！晒太阳的鳄鱼shitiyndey纳凉的小狗nlindexiou夜行的蝙蝠yxndebinf小贴士认真思考，勇于表达和交流。游戏晨起的小鸟chnqdexionio283多变的月亮dubindeyulin引入活动猜谜语cimy有yu时sh落在山腰luzishnyo，有时挂在树梢yushuzishsho。有时像面圆镜yushxinminyunjn，有时像把yushxinb镰刀lindo。想一想xinyixin，我们都见过什么样子的月亮wmendujinuoshnmeynzideyulin？和同htn学们交流一下xumenjioliyxi。我见过弯弯的月牙！昨天晚上的月亮是圆圆的！会不会就像一个圆饼被咬掉一口的样子？月亮是怎么由“圆盘”变成月牙的？表达交流29比一比byib，自己看到的月亮像哪一个zjkndodeyulinxinny？我们在地球上看到的月亮的样子就是月wmenzidqishnkndodeyulindeynzijishyu相xin，月相是不断变化的yuxinshbdunbinhude。在纸上画出自己见过的月亮zizhshnhuchzjjinuodeyulin，再用剪刀剪下来ziynjindojinxili。设计制作事实证据30照片中有圆月亮。选择安全的地点。在大人的指导下进行。随时画图记录。日期（农历）观察结果日期（农历）观察结果初三十五初八二十三十二二十八我们都能找到wmendunnzhodo和自hz己剪的jjinde月亮yulin相xin似s的照片吗dezhopinm？观察并记录不同日期的月相unchbnjlbtnrqdeyuxin。半圆形的也有！照片中有月牙。怎么找不到这种样子的月亮？小贴士反思观察31第四单元dsdnyun空气knq1空气知多少knqzhdusho引入活动猜谜语cimy看不见knbjin，摸不着mbzho，不香不臭没味道bxinbchumiwido。说它珍贵到处有shutzhnudochyu，动物植物离不了dnwzhwlblio。说一说shuyishu，做一做我们玩过的空气游戏zuyizuwmenwnuodeknqyux。空气游戏knqyux游戏33材料超市不干胶空气可以人离不了空空气没有颜教室里有空气头脑风暴空气知多少knqzhdusho关于空气我们知道些什么unyknqwmenzhdoxishnme？把它们写下来贴在btmenxixilitizi“气球树qqish”上shn。空气可以吹鼓气球植物生长需要空气空气没有味道教室里有空气家里有空气一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一我们知道的关于空气的知识真多！空气一一一一一一一一一一一一一一一一剪刀34关于空气我们还有哪些问题unyknqwmenhiyunxiwnt？快存入kuicnr“问题wnt银行ynhn”吧b。序号12345存入问题空气为什么看不见？为什么空气能让风车动起来？空气是由什么组成的？空气从哪里来？人为什么要呼吸空气？存入时间4月10日4月10日4月12日4月12日4月13日提取时间制作纸风车zhzuzhfnch材料超市问题银行存折从四个角cnsjio沿yn线xin剪开彩纸jinkicizh，将jin纸zh折zh向xin中心zhnxn。用图钉把纸yntdnbzh固定到小木棍上dndoxiomnshn，风fn车就做好了chjizuhole。将正方jinzhnfn形彩纸沿对角xncizhyndujio线分别对折xinfnbiduzh。剪刀彩纸小木棍图钉安全提示小心使用剪刀和图钉，不要伤到自己和别人。提出问题设计制作352找空气zhoknq一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一还有哪里有空气呢？怎么找到它？猜一猜哪里有空气ciyicinlyuknq。楼道里也有空气。瓶子里会不会有空气？怎样证明？粉笔里会不会也有空气呢？教室里有空气家里有空气提出问题猜想假设36我们在哪里找到了空气wmenzinlzhodoleknq？我们的周围充满着空气wmendezhuwichnmnzheknq。瓶子里也有空气。我在楼道里兜了一袋子空气！粉笔里真的有空气。材料超市粉笔玻璃水槽瓶子袋子袋子鼓起来了！挤一下瓶子jyxipnzi，气泡出来了qpochlile。事实证据得出结论找空气zhoknq37安全提示不要自己操作哟！迁移应用压缩棉被ysuminbi天气热了tinqrle，不用的被子太占地方了byndebizitizhndfnle