CBSE Class 9 Science Sample Paper with Answers 2014 (23)

CBSE Science Sample Paper for Class lX CBSE exams for CBSE Students. Based on CBSE and CCE guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class lX question papers in other links. The CBSE Question papers are prepared based on trend in past examinations and expected questions in CBSE exams. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class lX for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad. Please refer to more CBSE Class lX sample papers, question papers, HOTs etc in other links.

General Instructions :

(i) The question paper comprises of two sections, A and B, You are to attempt both the sections.

(ii) 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.

(v) Question numbers 1 to 3 in section A are one mark questions. These are to be answered in one word or one sentence.

(vi) Question numbers 4 to 7 are two mark questions, to be answered in about 30 words each.

(vii) Question numbers 8 to 19 are three mark questions, to be answered in about 50 words each.

(viii) Question numbers 20 to 24 are five mark questions, to be answered in about 70 words each.

(ix) Question number 25 to 42 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to choose one most appropriate response out of the four provided to you.

SECTION-A

1. A gas jar containing air is inverted over another containing NO2 gas which is brown in colour and heavier than air. After some time brown colour is seen in the inverted gas jar too. Identify the phenomenon associated with this observation. 

Ans. Diffusion

2. A passenger in a moving train tosses a coin which falls behind him. State the type of motion of the train. 

Ans. Motion is accelerated

3. Name the plastid involved in conversion of a green tomato to red. 

Ans. Chromoplast

4. List four reasons to support that water is a compound and not a mixture.

Ans. (i) The composition of water is fixed. (H : O = 1 : 8, by mass)

        (ii) Melting point and boiling point of water is fixed.

        (iii) Water cannot be separated into its constituent elements by physical methods.

        (iv) Water has entirely different properties from those of its constituent elements hydrogen and oxygen.

5. State one feature that is similar and one feature that is dissimilar with respect to mitochondria and plastids. 

Ans. Similar feature : Both have their own DNA and ribosomes to make their own protein.Dissimilar feature : Mitochondria is the site of cellular respiration and releases energy, while plastids with chlorophyll are centre for photosynthesis and store energy.

 

Please refer to attached file for CBSE Class 9 Science Sample Paper with Answers 2014 (23)

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