Matter In Our Surroundings Class 9 Notes – Chapter 1
Everything that we see around us is made up of matter. Even the air that we breathe is made up of matter. But what exactly is matter, and is everything really made up of matter?
Physical Nature of Matter:
Abstract concepts like memories, thoughts are not considered a matter because they do not occupy any physical dimension or space. Essentially, the matter in our surroundings from sand, trees, building and even the air has a certain mass and occupies space. This characteristic feature of taking up space and having a mass constitutes matter. Please refer Matter in Our Surroundings Class 9 Notes for more revision notes.
CBSE Revision Notes 