苏教版三年级科学上册第一单元复习题
苏教版三年级科学上册第一单元《认识空气》知识点及单元测试(含答案)
苏教版三年级科学上册第一单元知识点及测试卷第一单元认识空气一、空气占据空间吗1.像粉笔、水一样，空气占据一定的空间。
空气可以被压缩，压缩空气具有弹性。
2.把一个袋口打开、口朝下的塑料袋快速移动后握紧，塑料袋会鼓起来，这是因为塑料袋装满了空气。
3.在做注射器挤压空气实验时，放一小块泡沫在针筒里会看得更清。
推动活塞，空气占据的空间变小，松手，活塞回到原来的位置；用大一点力气推动活塞再松手，活塞会反弹回原来的位置。
4.压缩空气在生活中的用途：充气城堡、射钉枪、足球、喷水壶、轮胎、充气床垫。
二、空气有质量吗1.电子天平的使用方法（1）将电子天平放在水平桌面上，打开电源。
（2）按“归零”按钮，确保在称量之前显示数字为“0”。
（3）将要称的物体放在电子天平上，读取显示数字即可。
2.通过用电子天平测皮球充气前和充气后质量的变化，可以验证空气是否有质量。
3.17世纪，伽利略证明空气是有质量的。
4.接近地面处，1升空气的质量约为 1.29 克，相当于 3 枚回形针的质量。
5.科学家用精确的实验测得:空气有一定的质量，但是质量很轻。
三、热空气和冷空气1.热空气向上流动，冷空气向下流动。
同体积的热空气比冷空气轻。
2.取暖器、热气球、孔明灯等是利用热空气上升的原理制成的。
3.制冷空调或冷藏柜应放在房间的上方，这样可以让空气自然下降，降低室内气温；取暖器或暖气片应放在房间的下方，这样可以让空气自然上升，提高室内气温。
4.空气总是在循环运动的，流动的空气就是风。
5.自然界中风是怎样形成的？在自然界，地面上各个地方的空气都有冷热的不同，热空气会上升，冷空气会下降，空气的流动就形成了风。
6.制造风的方法：扇扇子、吹头发、吹风车、挤袋子……7.空气的性质：空气没有颜色、没有气味、没有味道；但空气占据空间、可以被压缩、有质量、可以流动、热空气上升冷空气下降。
苏教版三年级上册《科学》第一单元测试卷（认识空气）一、填空题（每空2分，46分）1.空气总是在________的，流动的空气就是________。
【新苏教版】科学三年级上册(1-3)单元试卷
第一单元检测试卷测试时间：60分钟测试总分：1001.空气存在于我们________，是无色、________、透明的。
2.在一个密闭的容器里，压缩空气，空气质量________，但体积________。
3.自行车上利用了压缩空气的部件是________。
4.空气很轻，但有________，占据________，可以被压缩。
5.1783年，法国人利用______________的原理，成功制造出载人的热气球。
6.风是由________形成的。
7.用充气筒吹气球，气球会鼓起来，这说明空气能________。
二、判断题。
（10分）1.空气看不见，摸不着，所以它不占据空间。
（）2.由于我们看不见空气，因此无法对空气进行观察研究。
（）3.空气被压缩得越厉害弹性越大。
（）4.空玻璃杯竖直倒扣在水槽里，当玻璃杯倾斜时，发现有空气跑出来。
（）5.土壤颗粒间的空隙被空气占据着。
（）6.因为空气很轻，所以我们无法测量空气的质量。
（）7.空气有一定的质量，但是质量很轻。
（）8.在没有风的时候，烟囱里冒出的烟会向下走。
（）9.冷空气下降，是因为冷空气比较重。
（）10.冷热空气的循环形成了风。
（）三、选择题。
（20分）1.下列不属于压缩空气在生活中的应用的是（）。
A.喷水壶B.射钉枪C.电风扇2.足球里装的是（）。
A.棉花B.热空气C.压缩空气3.下列现象中不能让周围的人感知到空气流动的是（）。
A. B. C.4.空气总是在（）运动的。
A.向上B.向下C.循环5.相同的两个气球，吹大后和原来相比要（）。
A.重一些B.轻一些C.一样重6.先将一个纸团塞在一个杯子的杯底，然后将杯子竖直倒扣在水中，杯底的纸团不会接触到水，这主要是因为空气（）。
A.有质量B.占据空间C.能流动7.有一瓶装满空气的玻璃瓶，我们可以往里面打进一些空气，也可以从瓶中抽出一些空气，这种现象说明（）A.空气只可以被压缩B.空气只可以被扩张C.空气既可以被压缩，也可以被扩张8.下面的物体中，（）是利用压缩空气有弹性的性质制成的。
苏教版小学科学三年级上册单元测试卷及答案(全套新教材)
3年级小学苏教版科学第一单元测试卷一、填空题（每空2分，46分）1.热空气__________,冷空气__________, 因为热空气比同体积的冷空气__________。
2.压缩空气在生活中应用广泛,如__________、__________、__________等都用到了压缩空气。
3.地球是一个近似的______体,各地因受太阳光照射的情况______，所以______ 也就不同,______的差异促使空气流动形成风。
4.空气总是在________的，流动的空气就是________。
5.解开吹满气的气球的绳子，对着自己的脸，有________感觉，说明________。
6.三国时，我们中国人利用热空气上升的原理发明了________。
7.温暖的地面会加热它上面的空气，________从地面上升，越升越高，然后又开始冷却下降。
________补充到________上升后留下的空间里。
8.空气被压缩的程度越大，产生的弹力就越________。
9.我们可以用________、________、________、________的方法制造风。
二、判断题。
（每空3分共12分）1.因为地球是一个球体，所以地面上各个地方受到太阳照射的情况不同。
（）2.在大自然当中，空气的流动形成了风。
（）3.因为我们感觉不到空气，所以空气没有质量。
（）4.我们周围的空间不真正是空的，而是充满了空气。
（）三、连线题。
(每条线3分，共15分)塑料瓶内的气球吹不大空气可以被压缩挤压注射器里的空气空气占据空间热气球升到高空压缩空气有弹性给足球充的气越多球越重热空气上升拍皮球球会弹跳起来空气有质量四、简答题。
（每小题5分，共20分）1.超市里的冷藏柜没有柜门,为什么冷气不会跑光？2.将漏斗插入小口瓶,用橡皮泥封住瓶口,然后快速向漏斗里倒水,水会流进瓶内吗?为什么?3.空气是无色的气体，看不见，摸不着。
在课堂上，我们想到观察空气流动的办法有什么？4.大自然中的风是怎样形成的？五、探究题。
【新教材】苏教版小学科学三年级上册：全册单元试卷、期中期末总复习试卷
第一单元全练全测1.空气存在于我们________，是无色、________、透明的。
2.在一个密闭的容器里，压缩空气，空气质量________，但体积________。
3.自行车上利用了压缩空气的部件是________。
4.空气很轻，但有________，占据________，可以被压缩。
5.1783年，法国人利用______________的原理，成功制造出载人的热气球。
6.风是由________形成的。
7.用充气筒吹气球，气球会鼓起来，这说明空气能________。
二、判断题。
（10分）1.空气看不见，摸不着，所以它不占据空间。
（）2.由于我们看不见空气，因此无法对空气进行观察研究。
（）3.空气被压缩得越厉害弹性越大。
（）4.空玻璃杯竖直倒扣在水槽里，当玻璃杯倾斜时，发现有空气跑出来。
（）5.土壤颗粒间的空隙被空气占据着。
（）6.因为空气很轻，所以我们无法测量空气的质量。
（）7.空气有一定的质量，但是质量很轻。
（）8.在没有风的时候，烟囱里冒出的烟会向下走。
（）9.冷空气下降，是因为冷空气比较重。
（）10.冷热空气的循环形成了风。
（）三、选择题。
（20分）1.下列不属于压缩空气在生活中的应用的是（）。
A.喷水壶B.射钉枪C.电风扇2.足球里装的是（）。
A.棉花B.热空气C.压缩空气3.下列现象中不能让周围的人感知到空气流动的是（）。
A. B. C.4.空气总是在（）运动的。
A.向上B.向下C.循环5.相同的两个气球，吹大后和原来相比要（）。
A.重一些B.轻一些C.一样重6.先将一个纸团塞在一个杯子的杯底，然后将杯子竖直倒扣在水中，杯底的纸团不会接触到水，这主要是因为空气（）。
A.有质量B.占据空间C.能流动7.有一瓶装满空气的玻璃瓶，我们可以往里面打进一些空气，也可以从瓶中抽出一些空气，这种现象说明（）A.空气只可以被压缩B.空气只可以被扩张C.空气既可以被压缩，也可以被扩张8.下面的物体中，（）是利用压缩空气有弹性的性质制成的。
苏教版三年级科学上册第1单元测试题
年班一、填空题（每空2分。
共22分）1.像（）、水一样，空气占据一定的（），空气可以被（），压缩空气具有（）。
2.空气虽然很轻，但还是（）质量的。
3.科学家用精确的实验测得：在接近地面，1升空气的质量约为（）克，相当于（）回形针的质量4.( )、（）是利用热空气上升的原理制成的。
5.空气总是在（）的，流动的空气就是（）二、判断（每题3分，共24分1.充气城堡根据压缩空气制作的。
（）2.像石头等固体，看得见摸得着，它有一定的质量，但空气我们看不见甚至感觉不到它的存在，所以它没有质量。
（）3.空气不占据空间。
（）4.和相同体积的水、石头比较，空气的质量很轻，（）5.因为空气没有固定的形状，所以它也没有体积。
（）6.热空气向上升，冷空气向下降。
（）7.人们利用热气球进行气量观测。
（）8.200多年前，发过的蒙哥尔费兄弟制成了热气球。
（）三、选择（每题3分，共24分）1.用手拍皮球，皮球跳起来很高，皮球里有（）。
A.空气B.弹性C.韧性2.把纸揉皱塞入杯底，将杯子倒过来插入水底纸不会湿的原因（）A.空气没有一定的形状B.空气占据空间C.空气能流动3.科学家伽利略用气泵向一个瓶子里打足气。
然后称它的重量，称好后瓶口打开，然后再称重量。
结果瓶子变轻了，这个实验说明了空气（）A.有重量B.没有重量C.说明不了什么4.下列物品中，运用了空气可以被压缩的性质的是（）A.风扇B.轮胎C.瓶子5.最早证明空气有质量的科学家是（）。
A.牛顿B.伽利略C.拉瓦锡6.下列说法错误的是（）。
A、空气很轻，可以用弹簧秤量出来。
B.空气有质量。
用电子秤测出空气的质量7.暖气片安装在房间的（）。
A.低处B.高处C.中间8.冷藏不加盖子是因为（）。
A.热空气向上升B.冷空气向下降 C冷热空气对流四、实验（12分）实验名称：用电子天平测皮球里空气的历量实验材料：电子天平、皮球、打气筒实验步骤：1.将一个没有充气的皮球放在电子杆上，读取显示的数字并做好记录。
苏教版小学科学三年级上册第一单元测试题
植物通常是靠叶子的细微舒张来吸收物质的。
实验证明，不光是叶子，植物的根以及土壤里的细菌在清除有害气体方面功不可没。
人们一般把绿色植物买回去就是为了美化环境，而如今买回去放在新装修完的房间里，也有的是放在办公室里净化空气，一举两得，何乐而不为.思考：
你从这篇短文中获得了关于植物的哪些知识？冀教版小学三年级上册科学第二单元测试题一、填空1、大多数植物都由（）（）（）（）（）（）六个部分组成。
五、在观察水生植物的活动中，我们把水葫芦和金鱼藻放入水槽中，观察了它们在水中的样子，请你用简图把它们画下来。
（16分）六、你观察过一棵大树吗？请你选择喜欢的方式描述一棵树的形状、粗细和高矮。
（14分）七、阅读与思考。
（10分）新装修完房间散发出的各种有害气体令人烦恼，可有的花木因为具有吸收这些气体、净化空气的本事而大受欢迎，这类花木也被一些装修者戏称为装修花。
①几百②几千③几万9、（）是世界上最大的花，它生长在印度尼西亚的热带森林里。
①茶花②王莲③大王花四、观察与发现。
（18分）1、你观察过大树与小草吗？请你把大树和小草的相同和不同之处记录在下面的圈图中。
2、我们的周围生长着许多植物，我们已经认识了大树、狗尾巴草、水葫芦和金鱼藻，你还知道哪些陆生植物和水生植物？记录在下面的记录单里。
（）2、蚯蚓对农作物有益处。
（）3、观察完蚯蚓要扔进垃圾箱。
（）4、我们可以通过声音来辨别动物。
（）5、只尝味道我们是分辨不出桔子好苹果的。
（）三、选择1、凤仙花的身体由（）部分组成。
A、4 B、5 C、6 2、我用（耳朵听C、鼻子闻D、舌头尝E、手摸3、科学家使用的电子显微镜放大倍数可以达到（）倍。
新苏教版小学科学三年级上册重点复习题
苏教版小学科学三年级上册重点复习题第一单元《我们都是科学家》1．当听到“科学”这个词的时候，我想到了（农业研究）、（实验分析）、（医学研究）、（珠峰测量）、（航天探索）……2．我们做过的类似科学家的活动有：（看小鸡出壳）、（看自己的影子）、（观察蚂蚁）、（拆玩具）、（看电视机里有什么）等。
3．（好奇心）让我们有问不完的“为什么”，并驱使我们不断地寻找问题的答案。
4．（琴纳）发现了（接种牛痘预防天花）的办法.5．科学探究的步骤是：（提出问题）、（作出猜测）、（寻找证据）、（得出结论）。
6．我知道的科学家的名字有:（琴纳）、（爱迪生）、（居里夫人）、（李时珍）、（袁隆平）、（牛顿）……7．英国人（罗杰特）发现了人眼具有（暂时记忆能力）。
（电影）就是根据他解释的原理制作的。
8．纸鹦鹉站起来的秘密是（重物在支撑点的下面）。
第二单元《我眼里的生命世界》1．校园里（小花）、（小草）、（树木）、（小鸟）、（蝴蝶）、（毛毛虫）、（蚂蚁）、（蜻蜓）、（蜜蜂）等都是有生命的。
2．自然界中的物体可分为（有生命的）和（没有生命的）两大类。
（有生命的物体）叫做（生物），（没有生命的物体）叫做（非生物）。
3．有生命的物体的共同特征有：（能长大）、（会繁殖）、（会死亡）（要呼吸）、（要吃东西）、（都对刺激有反应）等。
4．（生物）一般可分为（植物）和（动物）。
5．寻找有生命的物体注意：（随时记录）、（注意安全）、（不惊动或伤害小生物）、（校外寻找要和大人打招呼）。
6．植物的共同特征是（依靠阳光独立生活，位置一般不移动）。
7．观察一种植物，我们可以用（语言）、（文字）和（图画）来描述。
8．树叶的生长形式有（对生）、（互生）、（轮生）。
9．蚂蚁的身体分为（头）、（胸）、（腹）三部分，头上有（一对触角），胸部有（三对足）。
10．蜗牛的身体分为（壳）、（头）、（腹足）、（尾），头上有（两对触角），（腹足）可以运动。
11．金鱼的身体分为（头）、（躯干）和（尾）三部分，生活在（水中），靠（鳃）呼吸，靠（鳍）运动。
苏教版三年级科学上册复习资料及练习题
苏教版三年级科学上册复习资料及练习题（Jiangsu version of the third grade science book review materials and exercises）1 Jiangsu review version of the third grade science first volume unit we are scientists^ 1, curiosity always makes us to explore many things want to know why this is so, so we are constantly looking for and driveThe answer to the question. Our experiences are quite similar to those of scientists.- 2, scientists working [or four] is the stage of scientific research experience questions, make a guess, looking for evidence, it is concluded thatTheory. In order to conduct scientific research, we must first learn to ask questions.^ 3, everywhere in life science science is to ask questions and try to solve these problems.When scientists ask questions, they must figure out how to solve them.Scientific research is the process of asking questions and trying to find answers."4," Edward Jenner is a British country doctor he is the one who found vaccination against smallpox scientists.5 Niu Huisheng, a similar smallpox disease that is vaccinia.The 6, in 1824 the British Rogent made a "moving villain" fun activities and the activities of made theirExplain later this explanation is accepted by people movie is according to the principle of making his interpretation of the.Rogent, a British physician, discovered that the human eye has a temporary capacity for memory"7, I know that scientists haveYuan Longping breed was hailed as the "father of hybrid rice new varieties of hybrid rice"Madame Curie discovered radiumEdison invented the electric light is known as the "king of the invention"Li Shizhen write "Compendium of Materia Medica"8, I know the scientific research agricultural research, medical research, space exploration.9, "secret paper parrot" stand up "is under the light weight keep balance.10, the low center of gravity objects more stable.11, if an object f C share is not easy to fall.A heavy, light, B, placed in the low place, C light, heavy, D, as heavy as down12, why can the clown in the string acrobatic this is f shareA solves the problem,B guesses, andC asks questions13, just walk the acrobats holding a long pole to share R BA keep the balance of the windshield B14, the observation of ants is also a scientific study. R V share15. Science is only about scientists. F * share16, science is very advanced problem our students don't need to know. F * share17, try to balance, so that a variety of things stand on your fingertips. R V share18, as long as we observe carefully from the side of the inquiry problems can enter the world of science become a little scientist.R V share19, as long as it is engaged in scientific research work of the we call them scientists. F * share20, the activities we do have nothing to do with scientific inquiry. F * share21, the following does not belong to the scientific inquiry activity is f B share2 A. students study a problem that appears in the textbookB. Xiao Ming smashed the TVC. technicians observed the growth of corn in TanakaThe D. army made his own model plane22, do you think a scientist is observed following behavior in D from exergy is wrong.A. careful observation,B. is good at thinking,C. has curiosity,D. don't doubt adults' words23, we should conduct scientific research should first learn from La exergyA. asks questions,B. makes assumptions,C. looks for evidence, andD. concludesUnit second the life world in my eyesThe 1 is a life, biological objects of common biological features in LA could grow and die, need nutrition, can reproduce,Breathe, react to stimuli. So I can judge by the robot is inanimate increase because it does not eat.2, water droplets, robots, computers, clouds, waterfalls are not biological.3, living objects must be able to move. In the trees, such as those included * activities4, in the observation activities included C from LA is not correct.A. Caution!B. doesn't scare small animalC. can directly touch the animal, snatch.D. keep quietThe 5 plants, is to rely on sunlight for independent activities generally do not move the position of La La does not need to search for food.6, through the observation and comparison of LA I think the common characteristics of plants are in the sunlight and air are tending to have root absorption of water and nutrients can increase openThe results shown are flowers can reproduce.The growth of 7, the leaves have long form of birth, alternate, in whorls of three forms. The place where the leaves are grown is called the festival"OppositeYe ZiAs in the leaves of Osmanthus fragransEach section of the two leaf growth of 22 relative increaseAlternateYe ZiAs in the pile of leavesEach section of the growth of a leaf is observed in the interactionarrayVerticillateYe ZiAs in Ginkgo biloba leavesThere are three leaves growing in each section8, some plant leaves increase some plant leaves. As in the poplar leaves observed for deciduous pine9, in the shape of "snail snail has a spiral shell, soft body, head tentacles K when the snail is frightened or touchedWould curl up into the shell love life love in La snail activity at night in the dark, damp places La snail. Put the wine in front of the snail,Vinegar stimulus shown it will shrink tentacles.The snail head, chest and abdomen, the shell is composed of four parts.The snail will accelerate the escape from danger and stimulation of exergy x10, how to share the snail is crawlingFlat belly snail under the foot is actually a transverse increase these stripes like water as shown by the snail back wave stripesThe fluctuation observed extending and retracting forward. That is, a snail crawls on its belly. The snail's mucus acts as a protective element on its creeping parts.3 snails eat food on their tongues.If you want a snail to run fast, you can lure it with apples11, the ant is a social animal in love together in love ants eat sweets and biscuits and life peer. The body of an ant isdivided into head and thorax,The three part of the abdomen. Ants are the strong men of animals. It transmits information through the tentacles and secretions of the gas.The 12, not "a" ant together in particular when they will immediately end number in the bite up with the ants in the nest is notBut don't bite in the will to feed each other.13, small animal has characteristics of common R growth, death, breathing, eating, exercise, breeding,Small animal living environment, the different characteristics of F shape characteristics and habits and so different14, to classify plants F, water hyacinth, cactus plants, Shorea, coconut trees, corn, peanut, duckweedTerrestrial plants have R cactus, Shorea, coconut trees, cornAquatic plants, water hyacinth, K, duckweed and Alternanthera philoxeroides15, some small animal does not need the air to breathe can survive from La *16, some animal does not need water for example by ants never drink at the river. From La *17, observation is the effective means of learning science in that observation is to watch and record.* 18, animal and plants have life in them so people referred to as biological.19, observe the trees can be used in the bark when rubbing method to record the results of the observation of bark.The 20, below the circle in the proper position in person, animal, plant K, inanimate object.Third unit --- the source of life --- waterThe 1, water is an important part of the animal and plant body in the water in almost all biological life activities play a essential role.The water absorption and nutrition for our health is very important in the excretion of waste from boiling water. We are able to maintain normal body temperature as wellWater. In general if 5 consecutive days without water in the people's life will be threatened.The 2, water in plants and animals in a large proportion of the human body is 65% water in 90% water vegetables.3, long life without boiling water in the water like a mother's milk as in the feeding of all life on earth.4, we study the grass every day to drink in the in vitro when a few drops of oil to prevent evaporation of water.5, water is the cradle of life in the water or the nature of the "air conditioner" from your laThe 6 objects are commonly used methods, understanding R with eyes to see and smell, taste and touch. To understand the objects in the orderFor the sake of safety in the end do not casually smell more not just taste.7, liquid water will flow in the F shape in the fixed water has such characteristics as the object in the liquid we call it.- 8,The characteristics of the solid waterCheckExplain the magic of waterplaceNo colorNo smellInsipidness、transparentNot fixedThey'll crawlwaterCapillarity of waterWill unite"The waterSurface tension of waterThe pressure of spraying water 4 shapeEasily mobileliquidThe water"Lift"The waterBuoyancy of waterCan dissolve oneMaterialwaterWater dissolves some thingsqualityUnit fourth what are they made of?Also, 1 items are made of materials with La materials include natural and artificial materials have shown natural materials from nature is observed according to its originSuch as wool, wood, stone. The artificial material is made by processing natural materials or the properties of natural materials have shown changes made afterIncoming. Such as paper, iron, glass and plastic are artificial materials.5 kinds of natural materials in the life of common wood, stone, cotton, silk, linen, clay.5 kinds of common life in plastic, nylon, artificial materials, alloy, glass, paint.Write as much as possible in the use of paper packaging, printing, decoration, writing, wiping, dress.2. Different parts of an object are often made of a variety of materials of different characteristics. Tick from exergy3, is the Eastern Han Dynasty Cai Lun invented papermaking increase papermaking is one of the four great inventions of ancient china.The main raw material, the paper is 4 ^ k with wood waste paper, straw, cotton cloth and paper can also be old. In order to protect the information we want to note La woodSave paper. Saving paper is protecting wood resources.5, there are many interesting properties in the paperThe tensile strength of the same sheet, lengthwise and crosswise, is not firmequallyTransmittance showed fiber gap sizeThe absorbency of absorbent paper and the density of the paper fibersRelating to whether there is wax [capillarity effect]Fruit]6, all of the same color paper which have different share, strong degree of flash, water absorption and transparencyIn 7, the commonly used textile materialsCotton cloth soft breathable underwear can be observedWool wool soft warm winter cold can be used to increaseFilar thickSynthesisfibreNylon strong wear sportswear can increase.Nylon is the earliest synthesis in the worldLa fiberDistilled from petroleum.The 5 umbrella is made of nylonUnit fifth questions 1, love is a question starting point F is human nature of curiosity of scientific inquiry activities. We must continue to develop from love to questioningAsk questions.2, the text asked us many questions because f question is the starting point of scientific inquiry activities as much as possible.3, scientific problems in three aspects f they shareIn the 1 increase in careful observation of the activities ofIn the 2 question compared to some popular sayingIn the process of Science in the 3 increase in the production of small.4, Farber is the world's first study of insects in the natural environment and the life scientists Farber f f became watching insectsThe book of insects, the immortal book.5, Galileo in Leaning Tower of Pisa experimental f to overthrow the Aristotle "weight falling speed" point of view.6 goldfish, the most common cause of death is unknown and it is not f insatiably avaricious hunger. Goldfish not prey so it won't let f every grain of investmentFood for it.6, Cordyceps is also called the "golden grass" which bothinsects and grass at shape but not non grass insect f f belongs to algae. It doesn't winterDays into the summer into the grass insect F.In 7, f in the scientific inquiry to find the answer to the problem with share methodLa 1 in the library or on the Internet to find information, obtain indirect knowledgeIn his 2 shown by observation and experiment to find the answer, direct access to knowledge.8, in order to deepen the understanding and memory f we can make information card.9, we choose the research question F should raise the question of what1 more in the LA can through investigation, observation and experiment to find the answer to the question ofIn about 2 compared with the knowledge of science problemsIn 3 La mention the problem does not involve complicated knowledge.10, when temporarily not discussed the f we want to put it into the problem can be studied.11, I want a pair of is breathable and soft and comfortable shoes r you think should choose what material whyA share because strong r r soft soled. Cloth uppers r r because of sweat breathable cotton.12, scientists made the conclusion is correct we should not doubt F. Increase in the future13, scientists do what we simply can not do. In the La *14, in order to study their need f I can see what love is collecting the home study. In the La *15, as long as we make rational use of water resources f would not be facing water crisis. Increase in the future16, things far away with the naked eye can see f r with which of the following tools shown in the6 A. magnifier, B. telescope, C. microscope17, when we watched the ants will want to see more clearly in use which of the following tools exergy rateA. magnifier,B. telescope,C. microscopeThe first part, unit 1, lesson 1, we're all little scientists1, when you hear the word when you think of what science should be included2, Yuan Longping is an agricultural expert he is in the exergy research.In 3, exergy always makes us to explore many things, want to know why this is so, so.At the beginning of eighteenth Century 4, the scientists found that people in exergy vaccination can prevent smallpox.5, scientist Li Shizhen edited a medical encyclopedia in the exergy Madame Curie discovered ().6. The process of scientist's work is (,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.7, the scientists found in the modified Watt exergy gravity is in exergy.In 1824 8, the British people will find a temporary memory exergy human ability of the people later according to the principle of making it into a movie.Unit 1, class second, be a young scientistSecret 1. little parrot standing up is in exergy.2. I know that scientists will, in exergy, exergy exergy and exergy in tobacco.Unit second lesson 1 searching for living objects1. I have seen the object in life, in exergy, exergy, exergy exergy in tobacco.2. we know that living things can be divided into exergy exergy exergy in in in.What are the common features of the 3. common features of a plant? Plant is in a certain environment the need moisture, sun growth,The air and the nutrition will the growth and development of offspring will have the process of life from birth to death.There are 4. common features of the life object is in exergy exergy exergy exergy in in in.Unit second lesson second plants on the campusOneThe campus plants in exergy exergy exergy exergy in in in.The 2. leaf arrangement in stems. There are mainly three kinds of exergy exergy exergy in in in.Unit third second small animals on campus1. different creatures such as the fish living in the ant lives in exergy exergy in in in in exergy environmentThe tiger lives in exergy in.2. snail is crawling with the love to eat it in the exergy exergy in.3. insects are divided into in exergy exergy in exergy in three parts. In the foot of ants have exergy exergy in theAntenna。
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第一单元《我们都是科学家》复习题
一、填空题
1、当听到“科学” 这个词的时候，我想到了（农业研究）、（实验分析）、（医学研究）、（珠峰测量）、（航天探索）……
2、我们做过的类似科学家的活动有：（看小鸡出壳）、（看自己的影子）、（观察蚂蚁）、（拆玩具）、（看电视机里有什么）等。
3、（好奇心）让我们有问不完的“为什么”，并驱使我们不断地寻找问题的答案。
4、（琴纳）发现了（接种牛痘预防天花）的办法.
15、科学探究的步骤是：（提出问题）→（作出猜测）→（寻找证据）→（得出结论）。
6、我知道的科学家的名字有: （琴纳）、（爱迪生）、（居里夫人）、（李时珍）、（袁隆平）、（牛顿）、（罗杰特）……
7、英国人（罗杰特）发现了人眼具有（暂时记忆能力）。
（电影）就是根据他解释的原理制作的。
8、纸鹦鹉站起来的秘密是（重物在支撑点的下面）。
2、中国第一位飞上太空的宇航员是（杨利伟）。
9、第一次世界大战时，英国医生（弗莱明）发现了（青霉素），治好了很多病人。
二、判断题（对的打“√”，错的打“×” ）：
1、科学就是提出问题并想办法寻找答案的过程。
（√）
2、科学探究是一个复杂的过程，得出结论并不容易。
（√）
3、生活中处处有科学。
（√）
4、一个小小的疑问只要细心观察、思考，都有可能引出科学发现。
（√）
5、科学家做出的结论都是正确的，我们不应该怀疑。
（×）
6、我们所做的活动与科学探究没有关系。
（×）
7、科学是很神秘的，离我们很遥远。
（×）
8、科学家做的事情我们根本没办法做。
（×）
9、科学只和科学家有关系。
（×）
10、袁隆平是“杂交水稻之父”。
（√）
11、小孩种牛痘可以预防天花。
（√）
12、电影是根据人眼的视觉暂留原理制作的。
（√）
13、物体上轻下重不容易倒。
（√）
14、“纸鹦鹉” 站起来的秘密是重物在支撑点的下面。
（√）
三、选择题
1．物体（ A ）不容易倒。
A、上轻下重
B、上重下轻。
2、（ A ）发现了接种牛痘预防天花的办法。
A 琴纳
B 伽利略
C 牛顿
3、（C）写了一部医学巨作《本草纲目》
A、琴纳
B、居里夫人
C、李时珍
4、英国人罗杰特利用眼睛的视觉暂留原理发明了（ B ）。
A、手机
B、电影
C、镭
5、居里夫人发现了（ C ）。
A、闪电
B、铁
C、镭
四、把下列的科学家与他们所对应的科学贡献进行连线。
琴纳————发现了接种牛痘预防天花的办法
李时珍————药物巨著《本草纲目》
居里夫人————证实了镭元素的存在
罗杰特————发现了人眼具有“暂时记忆能力”
袁隆平————杂交水稻之父
弗莱明————发现了青霉素。