PSEB 8th Model Test Paper 2022 Science Term 2

MODEL TEST PAPER SCIENCE (Term Second) Class VIII (2021-22) Time:----hrs Maximum Marks:35 PART (A) Two Marks Questions (𝟐 × 𝟒 = 𝟖) Q1. Describe characteristics and uses of coke. Q2. List sources of noise pollution in your surroundings. Q3. Prepare a list of objects around you that are electroplated. Q4. Name two objects other than planets which are members of the solar system. PART (B) Three Marks Questions (𝟑 × 𝟓 = 𝟏𝟓) Q.1. Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from synthetic material? Advise Rana, giving your reason. Q2. A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency. Q3. Suggest three measures to protect ourselves from lightning. Q4. What is a constellation? Name any two constellations. Q5. What are the different ways in which water gets contaminated ? PART (C) Four Marks Questions (𝟒 × 𝟑 = 𝟏𝟐) Q1. Explain the process of formation of petroleum. Or Describe how coal is formed from dead vegetation. What is this process called? Q2.What are the sex hormones? Why are they named so? State their function. Or a) Define adolescence. b) What is menstruation? Explain. Q3. The bulb does not glow in the setup shown in figure. List the possible reasons. Explain your answer. Or In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.