Question 11 MarkWith repeated use of an eraser, what changes do occur in it?AnswerShape, SizeView full question & answer→
Question 21 MarkOut of heating of iron and rusting of iron which one is an irreversible change?AnswerRusting of ironView full question & answer→
Question 31 MarkTo fit a wooden handle in the iron ring of a tool to dig soil, the ring is heated. What will be the change in volume of the ring?AnswerVolume increasesView full question & answer→
Question 41 MarkOut of cooling of milk and curdling of milk which one is a reversible change?AnswerCooling of milkView full question & answer→
Question 51 MarkIs the burning of a matchstick a reversible or an irreversible change?AnswerIrreversible changeView full question & answer→
Question 61 MarkThe transformation of a solid substance into liquid is a / an $.........$ change.AnswerReversibleView full question & answer→
Question 81 MarkIf we sharpen a pencil again and again, its $.........$ decreases.AnswerlengthView full question & answer→
Question 91 MarkWhen cold water is poured over a hot iron rim, it $.........$AnswercontractsView full question & answer→
Question 111 MarkOn heating ice, it gets converted into $.........$AnswerwaterView full question & answer→
Question 121 MarkIf an inflated balloon is pierced with a pin, it$.........$AnswerburstsView full question & answer→