NCERT Solutions Class 9 Science Chapter 1 Matter In Our Surroundings

NCERT In-Text Questions Solutions In-Text Questions Page 03 Which of the following are matter?Chair, air, love, smell, hate, almonds, thought, cold, cold-drink, smell of perfume.Ans:-  Chair, air, almonds, and cold-drink. Give reasons for the following observation:The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you […]

NCERT Solutions Class 9 Science Chapter 5 The Fundamental Unit of Life

NCERT In-Text Questions Solutions In-Text Questions Page 59 Who discovered cells, and how?Ans:-  Robert Hooke discovered cells in 1665 while examining a thin slice of cork through a self-designed microscope. He saw that the cork resembled the structure of a honey comb consisting of many little compartments. He called these small boxes cells. Why is […]