Online Tests MATHEMATIC QUIZ Math quiz helps us to increase our knowledge 1 / 3 5*40 300 100 200 2 / 3 10+20 30 40 50 3 / 3 150/3 60 50 100 LinkedIn Facebook Google+ Science – Class-VI Changes Around Us 1 / 10 Baking of dough into bread is a kind of change that can be reversed that cannot be reversed that can be reversed at very hot temperature can’t say 2 / 10 Which of the following is a reversible change? Curdling of mil Ripening of fruits Melting of ice Burning of wood 3 / 10 Which of the following is a desirable change? Burning of House Floods Landslides Burning of cooking gas 4 / 10 Salt can be separated from its solution (salt dissolved in water), because mixing of salt in water is a change that can be reversed by heating and melting of salt. mixing of salt in water is a change that cannot be reversed. mixing of salt in water is a permanent change. mixing of salt in water is a change that can be reversed by evaporation. 5 / 10 Which of the following is an example of periodic change? Eruption of volcano Heartbeat A car accident Landslide 6 / 10 Changes in which heat is liberated are called _________ exothermic changes endothermic changes rapid changes none of these 7 / 10 Iodine sublimes on heating i.e. directly changes into a gas state without going through liquid state. Which of the following change is not true for iodine sublimation? change is fast change is physical change is reversible change is chemical 8 / 10 In general, on heating metals _______ contract expand can expand or contract none of these 9 / 10 Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rim expands and fits onto the wooden wheel. contracts and fits onto the wooden wheel. no change in the size takes place. expands first, then on cooling contracts and fits onto the wooden wheel. 10 / 10 Which of the following can be considered as fast change? Growth of child Germination of seed Bursting of crackers Cooking of food LinkedIn Facebook Google+ Quick LinksStudent Zone Students at KCM Clubs Curriculum Library Online Library Health Checkup Counseling & Guidance Dress / Uniform Result & Achievements Download
