Which of the following materials are 'heavier than water' and which 'lighter than water'?
Wood, Chalk, Oil, Kerosene, Iron, Copper, Ice, Aluminium, Plastic, Stone
Important Questions on Sorting Materials into Groups
Which of the following materials will float on water and which will sink in water?
An iron nail, A plastic toy, A cube of ice, Saw-dust, Sand, Dry leaves.
Which of the following is soluble in water and which are insoluble in water?
Groundnut oil, Potassium permanganate, Alum, Wax, Sugar, Sand, Petrol, Nitrogen, Oxygen, Copper sulphate, Methane.
Separate the following into natural materials and man-made materials :
Nylon, Water, Coal, Paper, Wood, Wool, Plastic, Glass, Steel, Gold
Name two objects each which can be made from the following materials: (a) Glass (b) Iron (c) Copper (d) Aluminium
Name five objects each which can be made from the following materials :
(a) Wood (b) Cotton (c) Leather (d) Paper
