CBSE: Check important extra questions for the upcoming CBSE Class 9 Science exam 2020-21 from Chapter 3 (Atoms & Molecules) of Class 9 Science NCERT textbook. Answers of all the questions are also ...

Big question. Grit, determination, hardworking, handsome, charming, funny. Teacher: Well, I guess. But you're actually made of atoms. In fact, everything is made of atoms. Presenter: It's funny, ...

Heating a substance makes its atoms and molecules move faster. This happens whether the substance is a solid, a liquid, or a gas. It’s not easy to see it happen in a solid but let’s try it for a ...