Question 1 What are pure substances? Question 2 What is a mixture? Give 5 examples of mixtures? Question 3 Why do we need to separate different components of a mixture? Explain with example? Question 4 Name a solid, liquid and a gaseous mixture? Question 5 State one use of winnowing? Question 6 Give one use of the hand-picking method of separating … [Read more...] about Threshing, Winnowing, Hand-Picking
mixture
Classification of Matter
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