Font size
Worksheets华民小学四年级科学常识比赛 Science Quiz Year 4
Total questions: 40
Worksheet time: 23mins
以下哪种情况会使人类感觉呼吸较困难？
Which of the following will make people hard to breathe?
天气比平日冷时
cooler weather
患上伤风感冒时
having flu
做了热身运动后
after warm-ups (exercise)
喝了热的饮料后
after drinking a cup of hot drink
图中显示人类的某个器官。以下哪项是图中器官的主要功能？
Picture showed an organ in human. Which is the function of this organ?
保护气体不受污染
to protect the gas from being polluted
使体内充满氧气和水分
to fill the body with oxygen and water
使氧气和二氧化碳可以进行交换
to exchange the oxygen and carbon dioxide
把体内的二氧化碳变成有用的气体
to change the carbon dioxide to become useful gas.
5）根据所进行的活动。从呼吸率较高排列到较低的呼吸率。
According to the activities, list the breathing rate from the highest to the lowest.
睡觉，看书，跑步
sleeping - reading - jogging
爬山，睡觉，洗碗
climb mountain - sleeping - washing dishes
骑自行车，钓鱼，睡觉
riding a bike - fishing - sleeping
上网，踢足球，看电视节目
surf internet - kick football - watch tv show
全部都是科学程序技能，除了
All below are science process skills, except
运用空间与时间的关系
Use the relationship between space and time
诠释资料
Interpreting information
检查
inspection
精确解释法
Precise interpretation
1. 下列哪一些刺激不会使我们作出快速的反应？
which of the following stimulus DOEST NOT make us react fast?
当电话铃声突然响起时
when the phone rang
当蚊虫就要飞进眼睛时
mosquito fly into our eye
当太阳从东边升起时
sun rises from the east
当一个皮球突然抛向我们时
when a ball is thrown to us
为什么莱佛士花不能自己制造食物？
Why the refflesia cannot make its own food?
它不会呼吸
it cannot breathe
它以捕食昆虫为生
it catches bugs to live
它没有叶绿素
it does not have chlorophyll
它没有茎
it does not have stem
太阳系中最热的行星是哪个？
Which is the hottest planet in the solar system?
水星
Mercury
金星
Venus
火星
Mars
木星
Jupiter
保丽龙需要多少年才能分解？
How long does a polystyrene need to decompose?
500 年
1000 年
5000 年
10000 年
铁制品在什么液体内不会生锈？
What liquid won't cause a metal to rust?
盐水
salt water
食油
cooking oil
可乐
coke
沸水
boiled water
以下物品中，其长度接近15cm的是哪个？
which item below is nearest to 15cm?
普通铅笔的长度
length of a pencil
学生桌子的高度
height of student's desk
科学课本的厚度
thickness of Science textbook
课室黑板的宽度
Wideness of classroom's blackboard
如果地球与水星交换位置，地球会怎么样？
What will happen to the Earth if it change position with the Mercury?
海洋结冰，生物死亡
The sea will freeze and all living things die.
气温太高，生物死亡
The temperature will be too high and all living things die.
更适合生物生存
more suitable for living things to live.
没有任何分别
no changes.
以下哪项说明是正确的？
Which of the following is TRUE?
卫星会反射太阳的光。
The moon reflects the light of the Sun.
土星是太阳系里最大的行星。
Saturn is the biggest planet in the solar system.
金星公转的轨道比地球公转的轨道大。
The orbits of Venus the greater than the Earth.
太阳系里的所有行星都以相同的方向自传。
All planets in the Solar System rotate in the same direction.
植物制造食物的过程叫
The process of a plant making food is called
光线作用
lightsynthesis
食物作用
foodsynthesis
植物作用
plantsynthesis
光合作用
photosynthesis
以下哪些物体是透明的？
Which of the following is transparent?
钥匙
key
被单
blanket
木椅子
wooden chair
玻璃
glass
为什么茅草在强劲的大风吹袭下不容易被吹倒？
Why does a thatch not easily blown down by the wind?
它会开花结果。
it will bloom and have fruit.
它的茎非常软。
It's stem is soft and stretchable.
它拥有坚固扎实的根。
it have strong roots.
它拥有细而轻的种子。
it have small and light seed.
下列哪种生物的呼吸器官和蟑螂的呼吸器官是相同的？
Which of the following have the same breathing organ as the cockroaches?
老鼠
mouse
鲸鱼
whale
蚱蜢
grasshopper
斑马
zebra
下列哪种工具能够帮助人类克服脑力的极限？
Which of the following help humans overcome the limits of their brainpower
显微镜
microscope
计算机
calculator
电话
telephone
汽车
car
音量大小的单位是什么？
Which of the following is unit for the loudness (volume) of sound?
分贝
decible
公斤
kilogram
米
meter
公升
litre
马来西亚首位宇航员是？
Who is the first astronaut from Malaysia?
马哈迪
Mahathir
路易·阿姆斯
Louis.Armstrong
谢赫·穆扎法尔
Sheikh Muzaffar
爱迪生
Thomas Alva Edison
第一只上太空的动物是？
The first animal to go on space is?
狗
dog
猫
cat
老鼠
mouse
老虎
tiger
为什么先看见闪电后听到雷声？
Why do we see the lighting before thunder?
闪电在空气中占得部分比较少
the lighting cover smaller portion in the air.
雷声在空气中占得部分比较多
the thunder cover bigger portion in the air.
光波在空气中的传播速度比声速快
light wave travel in higher speed than the sound wave in the air
声音在空气中的传播速度比光波快
sound wave travel in higher speed than the light wave in the air
用嘴向装有水的瓶子口的水平方向吹气，我们听到了声音，主要是因为什么？
we hear sound when we blow a bottle. Why?
水振动发声
water vibrates
瓶子振动发声
bottle vibrates
空气振动发声
air vibrates
嘴唇振动发声
lips vibrates
唱歌、说话主要是由于
singing and talking is basically formed by
嘴唇在振动
vibration of lips
声带在振动
vibration of vocal cord
空气在振动
vibration of air
舌头在振动
vibration of tongue
下列物体中，属于自然光源的是？
Which of the following is natural light source?
萤火虫、太阳
firefly, sun
镜子、打火机
mirror, lighter
点燃的火柴、蜡烛
matches, candle
开着的电灯、月亮
bulb, moon
傍晚的彩虹是出现在_________________天空的。
Rainbow will be at the ______ at the evening.
东边
east
南边
south
西边
west
北边
north
我们在灯光下能看到物体，是光的_________________。
We can see things under light. it is because of the light _____.
直射现象
direct
折射现象
refraction
辐射现象
radiation
反射现象
reflection
下列植物中，不喜欢阳光充足的环境是______________。
Which of the following plant does not like sunlight.
桂花树
osmanthus tree
桃树
peach tree
苔藓
moss
柳树
willow
如果连续三个月不为凤仙花浇水，会发生什么情况？
What will happen to a balsam plant if you did not water it for over 3 months?
凤仙花会开花
it will bloom.
凤仙花会枯萎
it will wither.
凤仙花的根会腐烂
the roots of the plant will rot.
凤仙花的叶子会掉落
the leaves of the plant will fall.
上图显示四种植物的果实。
Diagram above shows the fruits of four types of plants.
哪两种果实有相同的传播方法？
Which of the following two types of plants has similar method of dispersal?
P & Q
P & S
Q & R
R & S
哪项是当我们吃下食物后能的转换？
which of the following is the correct (transformation of energy) after we ate food?
势能 ---> 动能
potential energy ---> kinetic energy
化学能 ---> 动能
chemical energy ---> kinetic energy
动能 ---> 化学能
kinetic energy ---> chemical energy
化学能 ---> 声能
chemical energy ---> sound energy
当果实从树上掉下来时，会将原有的______转换成动能。
势能
potential energy
动能
kinetic energy
热能
heat energy
化学能
chemical energy
成年人的牙齿一共有多少颗?
Up to how many teeth can an adult grow?
12
30
32
16
图中哪一个物品/生物收入封密的容器内会使它死亡？
Which one of the following things will die if it is kept in a sealed container?
阿里将一棵植物放入一个箱子内，每天定时浇水。9天后，植物如上图方向生长。请问阿里用了哪一个箱子？
Ali put the plant in a box and watered it daily. After nine days, the plant looked as shown above.
Which one of the following boxes did he use?
图片中发生了什么事情？
What is happening in this picture?
The balloon pulls the girl's hair.
气球将女孩的头发拉向上。
The balloon pushes the girl's hair.
气球将女孩的头发退向下。
The balloon blows the girl's hair.
气球将女孩的头发吹走。
鱼用_____呼吸。
Fish breathe with _______.
肺
lungs.
潮湿皮肤
moist skin.
鳃
gills.
气孔
trachea
我们可以使用电器来弄热或______东西。
We can use electricity to heat things up or _________ things down.
吃
eat
冷却
cool
嗅
smell
Goggles are used for...
护目镜面罩是用来...
保护双眼
protecting your eyes
凝视太阳
gazing at the sun
潮流眼镜
cool-style eyewear
有趣
fun
上图显示一种电器。
以下哪种电器涉及的能的转换与上述电器相同？
Diagram above shows a type of electrical appliance.
Which of the following appliances has the same transformation of energy as the appliance above？
下面显示能的转换。
化学能 → 光能 + 热能
哪项活动涉及上述能的转换？
Energy transformation is shown below.
Chemical energy → electrical energy + heat energy
Which of the following activities makes use of energy transformation above?
