Matter Matter is defined as anything that occupies space and possesses mass. Classification of Matter (1) Physical classification (a) Solid (b) Liquid (c) Gases Solid Liquid Gases (1) They have fixed shape and volume They do not have fixed shape but have fixed volume They do not have fixed shape and volume (2) They cannot be compressed They … [Read more...] about Classification of Matter
elements
Elements
Question 1 What are elements? Give example? Question 2 Define the term atom? Question 3 Name 2 types of elements? Elements A substance which cannot be broken down into two or more simpler substances by chemical reactions is called an element. For Example: Iron,hydrogen,helium,oxygen,phosphorus,sulphur,chlorine,bromine,gold,silver,mercury, aluminium … [Read more...] about Elements
Elements
Question 1 What is an element.Give few examples? Question 2 How many elements are known till today? Question 3 Name 2 elements which are liquid at room temperature? Question 4 What are the three groups into which elements can be classified? Question 5 Define the term malleable? Question 6 Define the term ductile? Question 7 Why Aluminium metal is used in … [Read more...] about Elements