CBSE Class 9 Science Practice Paper SA ‒ I: Set ‒ IV

Jagranjosh presents CBSE Class 9 Science Practice Paper for the coming SA - I examination 2016 – 17. This practice paper is prepared after the brief analysis of previous year question papers of various CBSE schools.

About CBSE Class 9 Science Practice Paper 2016 – 17:

There are some concepts in CBSE Class 9 Science which are very important from examination point of view. Questions on these concepts are asked frequently in various schools. Most of the questions in this paper are based on such important concepts.

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Importance of CBSE Class 9 Science Practice Paper 2016 – 17:

After going through this paper you will:

•    understand the latest examination pattern

•    know important questions likely to be asked in CBSE Class 9 science examination

•    able to learn time management by practising the questions

CBSE Class 9 Syllabus 2016 - 2017

Some of the sample questions from the practice paper are:

Question. When a potted plant is covered with a glass jar, why do the water vapours appear on the walls of the jar?

Question. At what temperature, the solid and liquid states of a substance can exist together?

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Question. What happens to the passengers travelling in a bus when the bus suddenly stops? Give reasons for your answer.

Question. Define acceleration. Why is circular motion with constant speed called accelerated motion?

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Question. What is evaporation? Why does it cause cooling? State the various factors which affect evaporation.

Question. Comment on the following statements:
(a) Rate of evaporation is high when the humidity of air is low.

(b) Steam causes severe burns than boiling water.

(c) Sponge can be pressed easily; still it is a solid.

(d) Sugar crystals dissolve faster in hot water than cold water.

(e) Fragrance of an incense stick lighted in the corner of a room, spreads throughout the room.

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Question. (a) What happens to sugar when it is dissolved in water? What information do you get about the nature of matter from the dissolution of sugar in water?

(b) Why does diffusion occur more quickly in a gas than a liquid?

(c) What is Brownian motion? Write the characteristics of  matter is demonstrated by Brownian motion?

Question. A ball thrown up vertically upwards hits back the ground after 6 s. Find
(a) The initial velocity with which it was thrown upward.
(b) The maximum height it reaches, and
(c) Its position after 3s.

Question. Sneha is asked to separate the components of tincture of iodine which is a mixture of two materials X and Y. Componant Y has a property that its solid form can be directly converted into vapoures on heating. Identify X and Y. Name the process used to recover both components from tincture of iodine.

Question. Write two precautions to be taken while determining the boiling point of water.

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