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PYQ - Science 2006 Sec.A.Q1 |
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The following information shows how animals of type E and F protect
themselves from enemies.
以下资料显示动物 E 和 动物 F 遇到敌人时的自卫方法。
Which of the following represents E and F?
以下哪项代表 E 和 F？
Answer 答案 : C
Chapter 单元 :
Standard 4 四年级，Protection 生物的自卫方式
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PYQ - Science 2006 Sec.A.Q2 |
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The following information shows the characteristics of a plant.
以下资料显示某种植物的特征。
- Thick stem is able to store water 粗厚的茎能贮藏水分
- Very long roots 很长的根
- Small sized leaves 细小的叶子
Based on the above characteristics, where is the most suitable place for this
plant to grow?
根据以上的特征，这种植物最适合生长在什么地方？
A。Lake 湖泊
B。Swamp 沼泽
C。Beach 沙滩
D。Desert 沙漠
Answer 答案 : D
Chapter 单元 :
Standard 4 四年级，Protection 生物的自卫方式
The desert is a very hot and dry region. Only certain plants such as cacti can
survive in this place. Cacti have special characteristics (as stated above) that
enable them to survive.
沙漠是个干燥又炎热的地方。只有少数植物可以在沙漠生存，仙人掌就是其一，因为它具备以上的特征。
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PYQ - Science 2006 Sec.A.Q3 |
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Diagram 1 shows small plants in a closed bottle.
图 1 显示在封闭瓶内的幼小植物。
Diagram 1 / 图 1
What happen if a garden snail is put into the bottle?
如果把一只蜗牛放进瓶内，将会发生什么事？
A。The garden snail supplies fertilizer 蜗牛提供肥料
B。The number of small plants will increase 幼小的植物的数量快速增加
C。The number of small plants decreases rapidly 幼小植物的数量快速减少
D。The number of garden snails increases rapidly 蜗牛的数量快速增加
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，Food Chains and Food Webs 食物链和食物网
The snail will eat the plants. 蜗牛将吃掉幼小植物。
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PYQ - Science 2006 Sec.A.Q4 |
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Diagram 2 shows a plant placed in a shady room. 图 2 显示放置在阴暗的房间内的一棵植物。
Diagram 2 / 图 2
What should be done to the plant to help it to grow upright?
如何才能使植物直立向上生长？
A。Place it outside in an open space 把它置放在屋外空旷的地方
B。Fertilize it 施肥
C。Move it further away from the window 把它移到远离窗口的地方
D。Water it 浇水
Answer 答案 : A
Chapter 单元 :
Standard 4 四年级，Life Processes 生物的生存过程
Plant respond to stimuli to stay alive and grow well. The shoot of the plant
grows towards sunlight.
植物会对阳光产生反应。
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PYQ - Science 2006 Sec.A.Q5 |
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The following information states the characteristics of a seed.
以下的资料说明某类种子的特征。
- I have wings 我有翅膀
- I am small and light too 我又小又轻
- I can disperse far away from my parents
我能够从母树传播到很远的地方
- After I fall, I will germinate 我掉落后，会发萌芽
What is the dispersion agent for the seed?
以上种子的传播媒介是什么？
A。Animal 动物
B。Wind 风力
C。Explosive mechanism 自动爆发
D。Water 水力
Answer 答案 : B
Chapter 单元 :
Standard 5五年级，Survival
of Species 动物的延续
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PYQ - Science 2006 Sec.A.Q6 |
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In a particular habitat, a variety of living things found.
The bar chart is Diagram 3 shows the number of three types of living things
in a habitat.
在某个栖息地里，有不同种类的生物。
图 3 的条形统计图显示了在这个栖息地里的三种生物的数量。
Diagram 3 / 图 3
All the rats are eliminated. Which of the following bar charts do you expect
would show the changes in the number of paddy plants and eagles?
所有的老鼠被消灭了。你认为以下哪个条形统计图能够显示稻禾和老鹰的数量的变化？
A。
B。
C。
D。
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，Food Chain and Food Web 食物链与食物网
If rats are eliminated. This will result decrease of the number of eagles, as
there are lack of food for eagles to survive. The number of paddy plant will
increase, as the consumer has decrease.
当老鼠被消灭时，老鹰（消费者）会减少，因为缺乏食物供应。而蹈禾的数量则会增加，因为稻禾的需求量减少了。
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PYQ - Science 2006 Sec.A.Q7 |
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Diagram 4 shows a cat feeding its five kittens. One of the kittens is very
skinny compared to the others.
图 4 显示一只母猫在哺育五只幼猫。和其他幼猫比较，其中一只幼猫长得非常瘦小。
Diagram 4 / 图 4
What types of competition could have happened to explain this situation?
哪种竞争可以解释以上的情形？
I Space 空间
II Partner 配偶
III Food 食物
A。I and II B。I and III
C。II and III D。III only
Answer 答案 : D
Chapter 单元 :
Standard 6 六年级，Interaction between Living Things 生物之间的竞争
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PYQ - Science 2006 Sec.A.Q8 |
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What is meant by preservation?
什么是环境保护？
A。To care for something by improving it towards its original state to avoid
extinction.
关心及改善某物至恢复其原状，以避免它的灭绝
B。A condition where various species are extinct from the Earth
各类物种从地球上消失的情况
C。A struggle to acquire limited basic needs
争夺有限的基本需求
D。To maintain the condition of habitats so that living things can live
naturally
维护各种生物生存环境的状况，让它们自然生存
Answer 答案 : D
Chapter 单元 :
Standard 6 六年级，Interaction between Living Things 生物之间的竞争
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PYQ - Science 2006 Sec.A.Q9 |
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The following information compares the number of cubes which can be filled
into boxes E, F, G and H. All cubes are the same size.
以下资料是可以填满盒子 E、F、H 和 G的方立体的数量比较。所有方立体体的大小相同。
Which of the following bar charts represents the information?
以下哪个条形统计图能代表以上的资料？
A。
B。
C。
D。
Answer 答案 : B
Chapter 单元 :
Standard 4 四年级，Measurements 测量
The number of cubes which filled into boxes also reflex the size of the boxes.
The more the cubes can fill into the box, the bigger the size it is.
可填满更多方立体的盒子的容量也更大。
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PYQ - Science 2006 Sec.A.Q10 |
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Diagram 5 shows a cube and a measuring cylinder filled with 50 cm³ of water.
图 5 显示一个房立体和一个装有 50 cm³ 水的量筒。
Diagram 5 / 图 5
How many cubes must be put into the measuring cylinder to make the water
level rise to 75 cm³?
必须放入多少个方立体才能使量筒内的水位升到 75 cm³？
A。8
B。10
C。15
D。25
Answer 答案 : D
Chapter 单元 :
Standard 4 四年级，Measurements 测量
Cube is a solid where it has fixed volume. When the cubes put into the
measuring cylinder that contains water, the water level in the measuring
cylinder will rise.
方立体是固体，它本身拥有容量。 当把防立体放入含水的量筒，量筒里的水位将上升。由于方立体占去了水的空间，所以水位会上升。
The volume of cube = 1 cm³ ( 1cm x 1cm x 1cm).
The volume needed to make the water level rise to 75cm³ =
75cm³ - 50cm³ = 25cm³
Thus, we need to use 15 cubes to fill up the measuring cylinder.
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PYQ - Science 2006 Sec.A.Q11 |
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Diagram 6 shows an investigation using a glass jar containing several
objects.
图 6 显示一个用装了某些物体的玻璃容器所进行的实验。
Diagram 6 / 图 6 A magnet is placed near the jar. The paper clips and thumb
tacks are attracted to magnet. What does the investigation prove?
把磁铁靠近容器。磁铁吸引了回形针和图钉。这个实验证明了什么？
A。Magnetic pull is stronger at the poles
磁极的磁力比较强
B。All metals are magnetic objects
所有的金属都是磁性物体
C。Magnets can only attract paper clips
磁铁只能吸引回形针
D。Magnetic objects are attracted to the magnet.
磁性物体能被磁铁吸引
Answer 答案 : D
Chapter 单元 :
Standard 4 四年级，Magnet 磁铁
A magnet is a material or object that produces a magnetic field.Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic. These include iron, nickel, cobalt,
and some rare earth metals.
磁铁是一种能吸引某些物体的物质。能被磁铁吸引的物体被称为磁性物质。磁性物质是由铁、钴、镍等金属提炼而成。
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PYQ - Science 2006 Sec.A.Q12 |
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Diagram 7 shows an investigation about the conductor of electric current.
图 7 显示一个有关电导体的实验。
Diagram 7 / 图 7
The bulb in the circuit lights up. What is liquid Z?
电路中的灯泡亮了。液体 Z 是什么？
A。Cooking oil 油
B。Distilled water蒸馏水
C。Lime juice 酸柑汁
D。Sugar solution 糖的溶液
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，Electricity 电流
An electrical conductor is a material which contains movable electric charges. An insulator, also called a dielectric, is a material that resists the flow of electric current.
Lime juice is a conductor, and the rest are insulator.
电导体是能让电流通过的物体， 而绝缘体是不能让电流通过的物体。酸柑汁是电导体，其余的是绝缘体。
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PYQ - Science 2006 Sec.A.Q13 |
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Diagram 8 shows an investigation.
图 8 显示一个实验。
Diagram 8 / 图 8
What does the investigation prove?
这个实验证明了什么？
I Light is refracted 光会折射
II Light is reflected 光会反射
III Light travels in a straight line 光沿着直线前进
IV Light cannot penetrate through an opaque object
光不能透过不透明体
A。I and II
B。II and III
C。III and IV
D。I and IV
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，Light 光能
A shadow is formed when light from a source is blocked by an opaque or a
translucent object.
影子是因为光在传播时受到不透明体阻碍而形成。
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PYQ - Science 2006 Sec.A.Q14 |
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What is meant by light refraction?
光的折射是什么？
A。Light travels in a straight line 光沿着直线前进
B。The movement of lights as it travels from an object towards our eyes.
光从某物体朝向我们的眼睛里 C。The movement of light as it travels from one medium to
another medium.
光从一个媒介进入另一个媒介。
D。Light travels in all direction 光向所有方向前进。
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，Light 光能
Refraction occurs when light waves travel from a medium into a medium with another.
当光从一个透明体进入另一个透明体时，它的传播方向将会偏折一点。只有斜射的光可以折射。
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PYQ - Science 2006 Sec.A.Q15 |
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Diagram 9 shows an investigation about frictional force. Table 1 shows the
result of the investigation. 图 9 显示一个有关摩擦力的实验。表 1 显示实验的结果
Diagram 9 / 图 9
 Table 1 / 表 1
What is the conclusion of the investigation?
这个实验的结论是什么？
A。The sand paper has the greatest frictional force
砂纸表面的摩擦力最大
B。As the frictional force increases they toy car moves further
摩擦力越大，玩具车移动得越远
C。The mirror has the greatest frictional force
镜子表面的摩擦力最大
D。The frictional force on sand paper surface is lesser than on the mirror
surface
在砂纸表面的摩擦力比镜子的摩擦力小
Answer 答案 : A
Chapter 单元 :
Standard 6 六年级，Force 力
Friction is a force that opposes the movement of an object. A smooth surface
causes less friction, while a rough surface causes greater friction.
摩擦力是一种阻碍物体移动的力。一个物体的表面越粗糙，它所产生的摩擦力越大。
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PYQ - Science 2006 Sec.A.Q16 |
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Diagram 10 shows a carpenter sawing a piece of wood.
图 10 显示一个木匠正在距木板。
Diagram 10/ 图 10
Which of the following activities involve the two forces used by the
carpenter?
以下哪项活动所需要的两种力和木匠所用的相同？
A。
B。
C。
D。
Answer 答案 : D
Chapter 单元 :
Standard 6 六年级，Machines 机械
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PYQ - Science 2006 Sec.A.Q17 |
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Which of the following characteristics of a material are most suitable to
make a rain coat?
最适合用来制造雨衣的材必须具有以下哪项特性？
A。Stretchable and soft 有弹性和柔软
B。Light and waterproof 轻和不透水
C。Difficult to decay and long lasting 不容易腐烂和耐久
D。Transparent and floats in water 透明又可以浮在水面
Answer 答案 : B
Chapter 单元 :
Standard 4 四年级，Materials 材料世界 |
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PYQ - Science 2006 Sec.A.Q18 |
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Diagram 11 shows the characteristics of process X.
图 11 显示过程 X 的特征。
Diagram 11 / 图 11
What is the process X?
过程 X 是什么？
A。Evaporization 蒸发
B。Melting 溶化
C。Freezing 凝固
D。Condensation 凝结
Answer 答案 : A
Chapter 单元 :
Standard 5 五年级，States of Matter 资源
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PYQ - Science 2006 Sec.A.Q19 |
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Diagram 12 shows materials classified into two group.
图 12 显示被分成两组的材料。
Diagram 12 / 图 12
Which of the following correctly represents F and G?
以下哪项能正确地代表 F 和 G?
F
G
A。mineral water自来水
Tomato ketchup 番茄酱
B。Lime juice 酸柑汁 Coffee 咖啡
C。Soy sauce 酱油
Salt 盐
D。Cooking oil 食油
Sugar 糖
Answer 答案 : B
Chapter 单元 :
Standard 5，五年级：Acids & Alkalis 酸和碱
F materials are acidic and G materials are alkaline.
Examples of acidic substances are yoghurt, vinegar, lemon, star fruit, orange
Examples of alkaline substances are baking powder, soap, detergent, toothpaste, shampoo
Examples of neutral substances are mineral water, rice, cooking oil, salt, sugar
不同物质具有不同的化学特性。物质可根据其化学特性被分为酸性、碱性和中性。
F 物质是酸性的；G 物质是碱性的。
酸性的物质具有极酸的味道。它可把蓝色石蕊试纸变成红色。物质如：酸奶、醋、柠檬、杨桃、橙
碱性的物质具有极苦的味道。它可以把红色石蕊试纸变成蓝色。物质如：发粉、肥皂、牙膏、肥皂粉、洗发剂
中性的物质是不含酸性或碱性。它不会使红色和蓝色石蕊试纸改变颜色。物质如：自来水、饭、食油、盐、糖
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PYQ - Science 2006 Sec.A.Q20 |
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Diagram 13 shows an adjustable window.
图 13 显示可以调控的百叶窗。
Diagram 13 / 图 13
It is difficult to close the window. What should be done to the window
shutter?
当百叶窗难关上时，应该要如何处理百叶窗的开关器？
A。Rub it with sand paper 用砂纸擦
B。Wash with detergent 用肥皂水洗
C。Oil it 放油
D。Paint it 油气
Answer 答案 : C
Chapter 单元 :
Standard 6 六年级，Force 力
Lubricants such as oil, wax or grease can help to reduce friction.
油可以减少摩擦力
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PYQ - Science 2006 Sec.A.Q21 |
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Diagram 14 shows a piece of bread that has been left for a week.
图14显示 一片被搁置了一个星期的面包。
Diagram 14 / 图 14
Fungus has grown on the bread. What conditions cause the growth of fungus on the
bread?
面包已经发霉了。什么因素造成面包发霉？
A。Hot and dry 炎热和干燥
B。Hot and damp 炎热和潮湿
C。Damp and cold 潮湿和寒冷
D。Cold and dry 寒冷和干燥
Answer 答案 : B
Chapter 单元 :
Standard 6 六年级，Food Preservation 储存食物
Damp, warm and dark surroundings help the microorganisms grow faster.
炎热、阴暗和潮湿的地方适合微生物成长
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PYQ - Science 2006 Sec.A.Q22 |
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The following information shows a apple canning process.
以下显示罐装苹果的过程的资料。
A。P,S,Q,R
B。Q,P,S,R
C。S,P,R,Q
D。Q,S,R,P
Answer 答案 : D
Chapter 单元 :
Standard 6 六年级，Food Preservation 食物储存
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PYQ - Science 2006 Sec.A.Q23 |
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Table 2 shows the steps in recycling waste.
表 2 显示将废物再循环的步骤。
Table 2 / 表 2
Choose the correct sequence.
选出正确的排列
A。Y,X,W,Z
B。Z,W,X,Y
C。W,Z,Y,X
D。Z,Y,X,W
Answer 答案 : D
Chapter 单元 :
Standard 6 六年级，Waste Management 妥善的处理废物
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PYQ - Science 2006 Sec.A.Q24 |
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Diagram 15 shows three different occurrences.
图 15 显示三种不同的现象。
Which of them show the effect of gravitational attraction?
以下哪项显示地心引力的效应？
A。G and H
B。F and G
C。H and F
D。F, G and H
Answer 答案 : B
Chapter 单元 :
Standard 4 四年级，The Earth and the Universe 地球与宇宙 The gravitational force is often assumed to act directly towards the centre of the Earth。
地心引力是一种来自地球的力量，它能把所有物体向地球的中心地带。
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PYQ - Science 2006 Sec.A.Q25 |
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Table 3 shows the temperature conditions found within different layers of the
earth.
表 3 显示不同地层的温度状况。
Table 3 / 表 3
Which of the following bar charts represents Table 3?
以下哪一个条形统计图代表表3？
A。
B。
C。
D。
Answer 答案 : C
Chapter 单元 :
Standard 5 五年级，The Earth, The Moon and The Sun 地球、月亮、太阳
Basically, Earth can divide into 4 layers, Earth crust, mantle, outer core and inter core.
Earth crust is the outermost solid shell of the Earth.
The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. The temperature is lowest among the layers of the Earth and the most suitable for living things.
Mantle is the interior of the Earth. It is about 2900 km thick. The mantle is a highly viscous layer directly under the crust, and above the outer core. The temperature is around 2000 °C–4000 °C.
The outer core is 2300 km thick and the inner core is 1200 km thick. The outer core is composed mainly of a nickel-iron alloy, while the inner core is almost entirely composed of iron. The temperature is very high, more than 4000 °C
地球的内部可以分为三层，地壳、地幔和地核。而地核则可以分为内核和外核。地球的每一层都具有不同的温度及压力。地层越深，温度和压力就越高。地球的最外层是地壳，温度最低，也是最适合生物生存。地幔是地球的中层，也就是位于地壳和地核之间。最内层的是地核，外核和内核。
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PYQ - Science 2006 Sec.A.Q26 |
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Diagram 16 shows a jar containing mosquito larvae.
图 16 显示的玻璃缸内有孑孓。
The larvae can be destroyed by putting in
如果要消灭孑孓，就须放入
A。Water-lily 莲花
B。Water lettuce 浮萍
C。snail 蜗牛
D。Small fish 小鱼
Answer 答案 : D
Chapter 单元 :
Standard 5 五年级，Food Chain and Food Web 食物链与食物网
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PYQ - Science 2006 Sec.A.Q27 |
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Choose the correct sequence to show the history of agricultural technology.
选出农业工艺进展史的正确排列。
A。
B。
C。
D。
Answer 答案 : C
Chapter 单元 :
Standard 4 四年级，Technology 工艺的进展
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PYQ - Science 2006 Sec.A.Q28 |
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The following information shows inventors in one particular field of
technology.
以下资料显示在某个工艺领域的发明家。
- Alexander Graham Bell 贝尔
- J.L. Baird 拜尔德
A。Guglielmo Marconi 马可尼
B。Wilbur Wright 莱特兄弟
C。Eli Whitney 惠特尼
D。Karl Benz 本茨
Answer 答案 : A
Chapter 单元 :
Standard 4 四年级，Technology Around Us 工艺
Alexander Graham Bell, J.L. Baird and Guglielmo Marconi were the
inventors for communication system.
贝尔，拜尔德和马可尼是通讯领域的发明家
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PYQ - Science 2006 Sec.A.Q29 |
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In which of the following positions is the block most stable?
以下木块在哪个位置时最平稳？
A。
B。
C。
D。
Answer 答案 : A
Chapter 单元 :
Standard 5 五年级，Strength and Stability 强度及稳定性
A stable structure is a structure that does not topple easily.
A stable structure should has:
1. Lower structure
2. Bigger base area.
结构是某种建筑内的物体排列或支撑骨架得住排列。
一个坚固的结构是不容易断裂或损坏。结构 的稳固程度是会受以下因素影响：-
一）中心点（高度）-- 中心点越低，越平稳
二）底部面积 -- 底部面积越大，越平稳所以，
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PYQ - Science 2006 Sec.A.Q30 |
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Diagram 17 shows a tool. 图17显示某种工具。
Diagram 17 / 图 17
What are the simple machines found in the tool? 以上的工具是由哪些简单机械组成？
A。Lever and wedge 杠杆和尖劈
B。Lever and screw 杠杆和螺旋
C。screw and wedge 螺旋和尖劈
D。Pulley and wedge 滑轮和尖劈
Answer 答案 : A
Chapter 单元 :
Standard 6 六年级 Machines 机械
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PYQ - Science 2006 Sec.B.Q1 |
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Diagram 1 shows information gathered in an investigation.
图 1 显示在一个实验中所收集到的资料。
Diagram 1 / 图 1
(a) What is the aim of the investigation? [1 mark]
这个实验的目的是什么？
________________________________________________________________________
(b) State one constant variable in the investigation. [1 mark]
说出实验中的一个固定性变数。
________________________________________________________________________
(c) State one hypothesis that can be made in the investigation. [1 mark]
写出实验中可作出的一个假设。
________________________________________________________________________
Answer 答案 :
(a) To investigate the effect of competition between mangoes per
tree and the space.
为了研究芒果树之间的距离与芒果产生的数量之间的关系。
(b) water /nutrients/ location/ species of mango tree
水分/地点/养料/ 芒果树的种类
(c) The bigger the space between mango trees is, the more
mangoes will grow per tree
芒果树之间的距离越远，芒果生产的数量越多。
Chapter 单元 :
Standard 6 六年级, Interaction between living things 生物之间的互相联系
Competition between plants becomes more intense if there are more
plants growing in an area. They compete for food and space.
当植物长得太密集时，竞争就会产生。它们互相竞争以获取食物和生长空间。空间越大，竞争就会减少，植物也会生长得比较茂盛。
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PYQ - Science 2006 Sec.B.Q2 |
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In an experiment a pupil uses several paper clips and a magnet. The
magnet is labeled at three different positions, O, P and Q. Diagram 2.1
shows the result of the experiment.
在一个实验中，某学生使用了几枚回形针和一块磁铁。磁铁的三个不同的位置上标明着O、P和Q。图 2.1 显示实验的结果。
Diagram 2.1 / 图 2.1
(a) What is the aim of the experiment? [1 mark]
这个实验的目的是什么？
________________________________________________________________________
(b) State one variable that needs to the identified in the experiment. [1 mark]
说出在实验中需要确定的一个变数。
________________________________________________________________________
(c) What conclusion can be made from the experiment? [1 mark]
从上述的实验中可作出什么结论？
________________________________________________________________________
(d) Another magnet is attached to the magnet in Diagram 2.1 as shown in
Diagram 2.2.
在图 2.1 中的磁铁上附加另一快磁铁，如图2.2所示。
Diagram 2.2 / 图 2.2
Predict the number of paper clips attracted
towards P. [1 mark]
预测在 P 处所能吸引的回形针数量。
________________________________________________________________
________________________________________________________________
Answer 答案 :
(a) To investigate the relationship between
the magnetic on the different positions of
the magnet and the number of paper clip can be attracted by the
magnet
为了研究磁铁上不同位置的磁力与磁铁所能吸引的回形针数量之间的关系
(b) The number of paper clip that being
attracted by the magnet/ the size of the paper clips
被磁铁吸引的回形针的数量 / 回形针的大小
(c) The magnetic force at the two ends
of the magnet are
strongest, it able to attract more paper clips.
磁铁的两端磁力最强，能吸引最多最多的回形针
(d) 6 paper clips
6 枚回形针
Chapter 单元 :
Standard 4 四年级, Magnet 磁铁
A magnet is a material or object that produces a magnetic field.
Materials that can be magnetized, which are also the ones that are
strongly attracted to a magnet, are called ferromagnetic. These
include iron, nickel, cobalt, and some rare earth metals.
磁铁是一种能吸引某些物体的物质。能被磁铁吸引的物体被称为磁性物质。磁性物质是由铁、钴、镍等金属提炼而成。
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PYQ - Science 2006 Sec.B.Q3 |
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Ali has two rubber bands, x and y. x and y are of the same length. He
carries out an investigation using the rubber bands. Each rubber band is
hung with an identical tea pot. Diagram 3.1 shows the result of the
investigation.
阿里有两条橡皮筋，x 和 y。x 和 y 的长度相同。他用这两条橡皮筋来进行一个实验。每条橡皮筋都吊着一个大小相同的杯子。图 3.1
显示实验的结果。
Diagram 3.1 / 图 3.1
(a) State two inferences about the length of rubber band y. [2 marks]
针对橡皮筋 y 的长度，作出两个推断。
1. ____________________________________________________________
2. ____________________________________________________________
(b) Write one observation to support your inferences in 3 (a) [1 mark]
写出一个观察来支持你在 3 (a) 项中的推断。
_______________________________________________________________
_______________________________________________________________
(c) Ali heats rubber band x as shown in diagram 3.2.
阿里为橡皮筋 x 加热，如图 3.2 所示。
Diagram 3.2 / 图 3.2
After heating, it is found that rubber band x has elongated to 25 cm.
Write one hypothesis based on the information. [1 mark]
加热后，发现橡皮筋 x 增长 25 cm。
根据以上的资料，写出一个假设。
_______________________________________________________________
Answer 答案 :
(a) 1. Rubber band y is made of material that
stretchable.
橡皮筋 y 是由有弹性的物质制成的。
2. The elasticity of
rubber band y is better
橡皮筋 y 的弹性比较好
(b) Rubber band can be pulled longer
橡皮筋被拉得比较长
(c) When rubber band being heated, the length
will increase
橡皮筋受热后，长度会增加
Chapter 单元 :
Standard 4, 四年级, Materials 材料
Rubber band is made by rubber that able to pull or stretch. It
will return to its original shape and size after being released.
橡皮筋是由橡胶所制成的，所以它具有良好的弹性，容易拉扯。
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PYQ - Science 2006 Sec.B.Q4 |
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When ten tissue papers are moistened, their total weight is 300g. The tissue
papers are put to dry and their weights are recorded every hour. The result of
the investigation is recorded in the table below.
当十张纸巾被弄湿后，它们的总重量是300g。在弄干纸巾的过程中，每小时记录它们的总重量。实验的结果如下表所示。
(a) What is the aim of the investigation? [1 mark]
这项实验的目的是什么？
_______________________________________________________
_______________________________________________________
(b) What is the trend of change in the total weight of the tissue papers
during the investigation? [1 mark]
在实验中，纸巾总重量的变化形式是怎样的？
_______________________________________________________
(c) Suggest one hypothesis based on the trend stated in 4 (b). [1 mark]
根据 4(b) 项所写的变化，作出一个假设。
_______________________________________________________
(d) State on inference about the total weight change of the tissue papers
during the investigation. [1 mark]
针对实验中纸巾总重量的变化，作出一个推断。
_______________________________________________________
Answer 答案 :
(a) To investigate the relationship between
the time and the volume of water
evaporated from the moistened tissue
为了研究时间与水从纸巾中蒸发的体积之间的关系
(b) the total weight of the tissue papers will decrease
纸巾总重量会越来越少
(c) The longer the time is, the more volume of
water it will evaporate from the moistened
tissue
时间越长，水从纸巾中蒸发的体积越多
(d) The water evaporated from the moistened tissue
水从湿纸巾中蒸发了
Chapter 单元 :
Standard 5 五年级， State of Matter 资源
Water changes into water vapour by evaporation. This process
occurs at the surface of the water.
水由液态转变成汽态，逸入大气中的过程称为蒸发。
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PYQ - Science 2006 Sec.B.Q5 |
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Diagram 4 shows an investigation carried out at a particular place in
Taiping.
图 4 现实在太平某地进行的一个试验。
Diagram 4/ 图 4
(a) What is the aim of this investigation? [ 1 mark]
这个实验的目的是什么？
_______________________________________________________
(b) What is the trend of change in the shadow length from morning till
evening? [1 mark]
从早上到傍晚，影子长度的变化形式是怎样的？
_______________________________________________________
(c) Predict the length of the shadow at 5.30pm [1 mark]
预测在 5.30pm 时影子的长度。
_______________________________________________________
(d) State a relationship between the position of the Sun and the
direction of the shadow. [ 1 mark]
说出太阳的位置和影子的方向之间的关系。
_______________________________________________________
(e) State one inference about the direction of the shadow at 12.30pm. [ 1
mark]
针对在 12.30pm 时影子的方向作出一个推断。
_______________________________________________________
Answer 答案 :
(a) To investigate the relationship between the Sun's
position and the length of the shadow
为了研究太阳的位置与影子的长度和方向之间的关系
(b) The shadow will become shorter and
shorter. After 12.30pm, the shadow will become longer and longer
影子越来越短，下午12.30pm 过后，影子会越来越长
(c) Longer than 20cm
长过 20cm
(d) Sun's position and the shadow direction is
opposite.
太阳的位置和影子的方向是相对的。
(e) The Sun is exactly at the center of the
sky
太阳刚好在天空正中。
Chapter 单元 :
Standard 5 五年级，The Earth, The Moon and The Sun 地球、月亮、太阳
The rotation of the Earth on its axis causes the change in the
length and the position of the shadow of an object on the earth.
由于地球不停地绕着轴心自传、由西向东转，所以造成影子的位置从西方移到东方，也造成了影子的长短。
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Science
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