SUMMATIVE ASSESSMENT –I (2011)
SCIENCE / foKku
Class – IX /
Time allowed: 3 hours
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Maximum Marks: 90
vf/kdre vad % 90
The question paper comprises of two sections, A and B. You are to attempt both the sections.
All questions are compulsory.
(iii) There is no overall choice. However, internal choice has been provided in all the five questions of five marks category. Only one option in such questions is to be attempted.
(iv) All questions of section A and all questions of section B are to be attempted separately.
Questions 1 to 3 in section A are one mark questions. These are to be answered in one word or in one sentence.
(vi) Questions 4 to 7 in section A are two marks questions. These are to be answered in about 30 words each.
(vii) Questions 8 to 19 in section A are three marks questions. These are to be answered in about 50 words each.
(viii) Questions 20 to 24 in section A are five marks questions. These are to be answered in about 70 words each.
(ix) Questions 25 to 42 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you.
lkekU; funsZ”k %
bl iz”u i= dks nks Hkkxksa, Hkkx v vkSj Hkkx c esa ckaVk x;k gSA vkidks nksuksa Hkkxksa ds iz”uksa ds mRrj fy[kus gSaA
lHkh iz”u vfuok;Z gSaA
iwjs iz”u i= ij dksbZ p;u izkIr ugha gS ijUrq ikap&ikap vadks ds ikWap iz”uksa esa Hkhrjh p;u fn;k x;k gSA bu iz”uksa esa vki dsoy ,d Hkhrjh p;u dks mRrj fy[kus ds fy, pqu ldrs gSaA vkidks Hkkx v vkSj Hkkx c ds lHkh iz”uksa ds mRrj i`Fkd&i`Fkd fy[kus gksxsA a
Hkkx v ds iz”u la[;k 1 ls 3 ds iz”u ,d&,d vad ds gSaA buds mRrj ,d “kCn vFkok ,d okD; esa nsA
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Hkkx v ds iz”u la[;k 4 ls 7 ds iz”u nks&nks vadksa ds gSaA buds mRrj yxHkx 30&30 “kCnksa esa nsus gSaA Hkkx v ds iz”u la[;k 8 ls 19 ds iz”u rhu&rhu vadksa ds gSaA buds mRrj yxHkx 50&50 “kCnksa esa nsus gSaA
(viii) Hkkx v ds iz”u la[;k 20 ls 24 ds iz”u ikap&ikap vadksa ds gSaA buds mRrj yxHkx 70 “kCnksa esa nsus gSaA (ix) Hkkx c ds iz”u la[;k 25 ls 42 ds iz”u iz;ksxkRed dkS”ky ij vk/kkfjr cgqfodYih iz”u gSaA izR;sd iz”u ,d vad dk gSA fn, x;s pkj fodYiksa esa ls vkidks dsoy ,d lcls mi;qDr fodYi pquuk gSA (vi)
What is dry ice ? What happens when the pressure under which it is stored is decreased to 1 atmosphere ?
Why is glass or chinaware packed with straw ?
Name the processes by which CO2 and H2O move into and out of the cell ? CO2
List in tabular form any two differences between homogeneous and heterogeneous mixtures.
State universal law of gravitation. Express it mathematically.
Differentiate between the plasma membrane and cell wall.
List any four salient features of meristematic tissue.
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Explain how the following factors affect the rate of evaporation of a liquid : (i)
temperature of the liquid.
area of the exposed surface.
moisture in the surrounding air.
increase in wind speed.
Name the process or the separation technique you would follow to separate : (a)
Butter from cream
Ammonium chloride and common salt
Dyes in black ink
Iron filings and sand
State the principle used in separation by centrifugation.
What is acceleration ? Write its unit.
Draw velocity-time graph, when an object has
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uniformly accelerated velocity.
uniformly retarded velocity.
The velocity–time graph of a car is given below. The car weighs 1000 kg. (i)
What is the distance travelled by the car in the first 2 seconds ?...
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