Science

In-text Question (Page 18) Question: You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? Answer: Dip the red litmus … Read more

In-text Question (Page 195) Question: Why does a compass needle get deflected when brought near a bar magnet? Answer: A compass needle is actually a tiny bar magnet. When it is brought near another magnet (like a bar magnet), the magnetic field around the bar magnet acts on the compass needle. This magnetic force causes … Read more