1 Questions Unit 1 1 Give Reasons For Each Of The Follo

Questions Unit Give Reasons For Each The Following Equal Masses Different Substances Have Different Volumes Equal Volumes Different Substances Have

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1 Questions Unit 1 1 Give Reasons For Each Of The Following 1 Equal Masses Of Different Substances Have Different Volumes Or Equal Volumes Of Different Substances Have Different Masses 2 The Iron Nail And The Metallic Coin Sink In Water While The Piece Of Wood Floats On The Water Surface 3 Water Is Not Used To Extinguish Petrol Fires 4 Balloons Filled With Hydrogen Or Helium Rise Up In Air Carrying Flags 5 Melting Point Is Used To Separate Between Different Substances 6 Electric Wires Are Made Of Copper Or Aluminium 7 Screw Driver Are Made Of Steel While Their Handles Are Made Of Wood Or Plastic 8 Cooking Pans Are Made Of Aluminium 9 Handles Of Cooking Pans Are Made Of Wood Or Plastic 10 Sodium And Potassium Are Kept Under Kerosene Surface 11 Steel Bridges And The Holders Of Light Bulb Are Painted From Time To Time Metallic Spare Parts Of Cars Are Covered With Grease 12 Washing Of Cooking Pans Made Of Aluminium With A Rough

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