Question 1 Define the term evaporation? Question 2 How are clouds formed? Question 3 Why do water drops appear on the outer surface of a glass containing ice-cold water? Question 4 What is transpiration? Question 5 We hang our wet clothes out to dry on a rope.What happens to the water in the clothes? Question 6 Give few examples of evaporation in daily … [Read more...] about Evaporation, Transpiration and Condensation
condensation
Vapour Pressure
In a liquid, the molecules are quite close together so that there are considerable forces of attraction between them and hence they are held together in a definite volume. The liquids possess fluidity like gases but incompressibility like solid. Properties of Liquid (1) Liquids have no definite shape: They take up the shape of the vessel in which they are put. This is … [Read more...] about Vapour Pressure
Change in State of Matter
Question 1 What are the ways in which physical state of matter can be changed ? Question 2 What is boiling ? Question 3 What is condensation? Question 4 What is freezing? Question 5 What do you mean by inter-conversion of matter? Question 6 What is melting or fusion. Question 7 What does higher melting point indicate ? Question 8 How does a solid changes … [Read more...] about Change in State of Matter