List some materials that are used for making more than one type of an object.
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Why a tumbler is not made with a piece of cloth?
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Why iron appears different from copper and aluminium?
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Do liquids dissolve in water?
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Give two examples in which gas dissolve in water.
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Do gases also dissolve in water?
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Why do we need to group materials?
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Why a shopkeeper prefers to keep biscuits and sweets in a glass or plastic container?
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Name five objects which can be made from wood.
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Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt
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State whether the statements given below are True or False.
(a) Stone is transparent while glass is opaque.
(b) A notebook has lustre while eraser does not.
(c) Chalk dissolves in water.
(d) A piece of wood floats on water.
(e) Sugar does not dissolve in water.
(f) Oil mixes with water.
(g) Sand settles down in water.
(d) Vinegar dissolves in water.
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Given below are the names of some objects and materials: Water, basketball, orange, sugar, globe, apple and earthen pitcher. Group them as
(a) Round shaped and other shapes.
(b) Eatables and non-eatables.
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List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
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Find the odd one out from the following:
(a) Chair, Bed, Table, Baby, Cupboard
(b) Rose, Jasmine, Boat, Marigold, Lotus
(c) Aluminium, Iron, Copper, Silver, Sand
(d) Sugar, Salt, Sand, Copper sulphate
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