1) roots which absorb moisture from atmosphere a) stilt roots b) propagaive roots c) aerial roots d) respiratory roots 2) at which insance we use liquids a) building materials b) medium of transport c) pressure cookers d) hydrogen balloon 3) which one is not an element a) carbon b) calcium carbonate c) chlorine d) sulphur 4) the physical property that increase in volume wihout an increase mass a) ductility b) sonority c) colour d) expansivity 5) this features does not belongs to metal a) brittlenss b) colour c) conducer of heat  d) conductor of elecricity 6) the instrument produced sound by vibraing string is a) flute b) quitar  c) thabla d) trumpet 7) which is a magneic materials a) chromium b) zinc c) wood d) copper 8) where are the places we can see permanent magnets a) toy car  b) wood cupboard c) elecric motor d) school bags 9) the change of a liquid into gas is known as a) condensation b) freezing c) vapourisaion d) sublimaion 10) which is not an evidence that take place chemical change occur a) formaion of precipitates b) change in colour c) hearing sound d) evolution of gas

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