You can learn easily from the comprehensive study material for Matter in our surroundings in class 9, well-curated study notes and challenging practice tests. If the student has a doubt, referring these books is important for the students to get good marks in the upcoming exam. Question 4: The mass per unit volume of a substance is called density (density= mass/volume. You have also learnt that the atoms are the smallest constituents of matter. Students, teachers and parents can download all CBSE educational material and extremely well prepared worksheets from this website. What we eat, drink or breathe is the matter. CBSE Class 9 Science Important Questions. CBSE Class 9 Chemistry Matter in Our Surroundings. If you preserve surfing the site, you compromise to using cookies on this website. Let's set out to study Matter in Our Surroundings chapter in detail. The question of openness to the Holy Spirit is the fundamental question of our time, of our surroundings, of the whole earth and of our life on this earth. However, the smell or odour of a substance is classified as matter. Your email address will not be published. Science topics hold utmost importance in increasing one’s score in any examination. Government of Karnataka - Class 9 Science: Chapter 1- Matter in our surroundings Additional information. Anything that occupies space and has mass and is felt by senses is called matter. e. Question 7: Why does our palm feel cold when we put some acetone or petrol or perfume on it. Ans: Copper sulphate crystals mixed between the spaces of molecules of water and disappear. In which of the […] When she is not writing, she loves wandering around the hills, as exploring nature excites her the most. Answers: The given substances in the increasing order of their densities can be represented as: Air