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Question 1., Which one of the following is a reliable measure?, (a) Hotness, (b) Coldness, (c) Temperature, (d) None of these, Question 2., Name the device which is used to measure the hotness or coldness of an object., (a) Picometer, (b) Barometer, (c) Manometer, (d) Thermometer, Question 3., Which one is filled in the bulb of a thermometer?, (a) Mercury, (b) Lead, (c) Copper, (d) Silver, Question 4., What is the normal temperature of a healthy person?, (a) 37°C, (b) 37°F, (c) 37 K, (d) None of these, Question 5., Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours, would be observed., (a) Yellow in both acid and base, (b) Yellow in acid and red in base, (c) Pink in acid and yellow in base, (d) Red in acid and blue in base, Question 6., Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively, are:, (a) red and blue, (b) blue and red, (c) pink and colourless, (d) colourless and pink, Question 7., When the soil is too basic, plants do not grow well in it. To improve its quality what must be, added to the soil?, (a) Organic matter
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(b) Quick lime, (c) Slaked lime, (d) Calamine solution, Question 8., Which of the following set of substances contain acids?, (a) Grapes, lime water, (b) Vinegar, soap, (c) Curd, milk of magnesia, (d) Curd, vinegar, Question 9, What will happen if carbon dioxide gas is passed through lime water ?, (a) Calcium carbonate is formed, (b) The lime water turns milky, (c) Both of these, (d) None of these, Question 10, Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is, responsible for its long stability?, (a) It is more than 7 metres high, (b) It weighs about 6000 kg, (c) It was built more than 1600 years ago, (d) It has not rusted after such a long period, Question 11, Galvanisation is a process used to prevent the rusting of which of the following?, (a) Iron, (b) Zinc, (c) Aluminium, (d) Copper, Question 12, Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling,, crystals of sugar got separated. This indicates a:, (a) physical change that can be reversed, (b) chemical change that can be reversed, (c) physical change that cannot be reversed, (d) chemical change that cannot be reversed, Question 13, The coldest region on earth is the:, (a) polar region, (b) tropical region, (c) temperate region, (d) coastal region
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Question 14, Choose the odd one from the following options:, (a) Thick layer of fat under the skin, (b) White fur, (c) Long grasping tail, (d) Wide and large feet with sharp claws, Question 15, Which of the following is not an adaptive feature in polar bear?, (a) White fur, (b) Strong sense of smell, (c) Long curved and sharp claws, (d) Long tail, Question 16, Which is the characteristic feature of tropical rainforests?, (a) Hot and humid climate, (b) Enormous number and variety of animals, (c) Competition for food and shelter, (d) All of these, Question 17., The winds from oceans carry water and bring rain. These winds are called, (a) typhoon, (b) monsoon, (c) cyclone, (d) none of these, Answer, Question 18., What is a cyclone?, (a) Winds from the oceans carrying water, (b) Very low pressure system with very high speed winds revolving around it, (c) Dark funnel shaped cloud that reaches from the sky to the ground, (d) None of these, Answer, Question 19, Pick the odd one out, (a) Cyclone, (b) Hurricane, (c) Monsoon, (d) Typhoon, Answer, Question 20, A cyclone warning can be issued, (a) 48 hours in advance
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(b) 12 hours in advance, (c) 6 hours in advance, (d) 24 hours in advance, Question 21., Which one of the following is a step in the formation of soil?, (a) Earthquakes or volcanic eruptions, (b) Weathering of rocks, (c) Addition of humus, (d) All are involved in the formation of soil, Question 22., In which horizon of soil minerals are found?, (a) A, (b) B, (c) C, (d) None of these, Question 23., Which physical property of soil is important to us?, (a) Texture, (b) Water holding capacity, (c) Both of these, (d) None of these, Question 24., Which of the following type of soil will form a colloidal solution when suspended in water?, (a) Clay, (b) Silt, (c) Sand, (d) Gravel, Question 25., Which factor influences soil formation?, (a) Climate, (b) Vegetation, (c) Parent rock, (d) All of these, Question 26, The general process that takes place at a sheep shearing shed is:, (a) removal of fleece., (b) separating hair of different textures., (c) washing of sheep fibre to remove grease., (d) rolling of sheep fibre into yam., Question 27, The rearing of silkworms for obtaining silk is called:
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(a) cocoon, (b) silk, (c) sericulture, (d) silviculture, Question 28, Which of the following is not a type of silk?, (a) Mulberry silk, (b) Tassar silk, (c) Mooga silk, (d) Moth silk, Question 29, Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the, following would be the right gift for her to buy?, (a) Woollen shawl, (b) Silk scarf, (c) Animal fur cap, (d) Leather jacket, Question 30, Silk fibre is obtained from:, (a) fleece of sheep, (b) cotton ball, (c) cocoon, (d) shiny jute stalk
