Class 8 Science Important Questions
Crop Production and Management Important Questions
Crop Production and Management — Important Questions 1. Differentiate between kharif and rabi crops with examples. 2. List the basic agricultural practices in order. 3. Differenti…
Microorganisms: Friend and Foe Important Questions
Microorganisms: Friend and Foe — Important Questions 1. Name the major groups of microorganisms. 2. Give two useful and two harmful activities of microbes. 3. What is a communicab…
Coal and Petroleum Important Questions
Coal and Petroleum — Important Questions 1. Differentiate between exhaustible and inexhaustible resources. 2. How is coal formed? Name two products obtained from it. 3. What is th…
Combustion and Flame Important Questions
Combustion and Flame — Important Questions 1. State the three conditions necessary for combustion. 2. Define ignition temperature. 3. Differentiate between rapid and spontaneous c…
Conservation of Plants and Animals Important Questions
Conservation of Plants and Animals — Important Questions 1. What is deforestation and what are its effects? 2. Differentiate between a wildlife sanctuary and a national park. 3. D…
Reproduction in Animals Important Questions
Reproduction in Animals — Important Questions 1. Differentiate between sexual and asexual reproduction. 2. What is fertilisation? Differentiate internal and external fertilisation…
Reaching the Age of Adolescence Important Questions
Reaching the Age of Adolescence — Important Questions 1. What is adolescence and puberty? 2. List four changes that occur at puberty. 3. What are hormones? Name the male and femal…
Force and Pressure Important Questions
Force and Pressure — Important Questions 1. State four effects a force can produce. 2. Differentiate between contact and non contact forces with examples. 3. Define pressure and w…
Friction Important Questions
Friction — Important Questions 1. What causes friction? In which direction does it act? 2. Arrange static, sliding and rolling friction in increasing order. 3. Give two ways to re…
Sound Important Questions
Sound — Important Questions 1. How is sound produced? Why can it not travel in a vacuum? 2. Differentiate between pitch and loudness. 3. On what does the pitch of a sound depend?…
Chemical Effects of Electric Current Important Questions
Chemical Effects of Electric Current — Important Questions 1. Name two good and two poor conductors among liquids. 2. Why does tap water conduct electricity but distilled water do…
Some Natural Phenomena Important Questions
Some Natural Phenomena — Important Questions 1. How does an object get charged by rubbing? 2. State the law of charges (like and unlike). 3. What is lightning? How does a lightnin…