STD VIII. Mathematics. Rational Numbers. 28. If one of them is 81. on a number line. in ascending order.

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1 Mark QUESTIONS The product of two rational numbers is STD VIII Mathematics Rational Numbers Find four rational numbers between 0 Represent on a number line 8 If one of them is 8 The sum of two rational numbers is If one of them is Simplify: Marks Questions Verify that:, then find their sum, find the other Express as a rational number with numerator 9 as a rational number as denominator 8 Arrange the rational numbers,, 0 in ascending order 9 Rahul has a habit of wake up early in the morning go for a long walk One day he walked km from a place P towards east then from there km towards west (i) What is his position from P? (ii) What value is possessed by Rahul? 0 Radhika had a certain amount of money On her birthday she spent 00 in the school 8 canteen for her friends, presented a gift of worth her younger brother If now she had What value is shown by Radhika? Marks Questions to her best friend gave to 0 left with her, find the amount she had started with

2 The cost of (a) Express (b) Express 90 meters of cloth is Compare the absolute values of Represent, 8 as a rational number with numerator as a rational with denominator Arrange,, 0 0 Marks Questions Find the cost of 8 meters of cloth on the same number line 9 Simplify: 9 0 Find four rational numbers between 8 Find four rational numbers between 9 (a) Write the stard form of in descending order 8 (b) Fill in the blanks if: 0 In the given line, find the rational number represented by A, B, C D A B C D **************************************************************** Linear Equations in One variables One Mark Questions Solve: 8x x + = x + x

3 Solve: x + x = Solve: y + 00y = 9 + y Find three consecutive odd numbers whose sum is The greater of two numbers is more than the smaller The sum of two numbers is 0, frame a linear equation in one variable Two Marks Questions x Find x : x 9y Solve for y : 9 y 8 0z 8 Solve for z: z 9 9 One number is three times another number If are added to both the numbers, then the larger number becomes two times the smaller Find the numbers 0 The width of a garden is two-third of its length If its perimeter is 0 m, find its dimensions Three Marks Questions y 8y Solve for y check your answer: 9y y Find x if: 8 x x x 8 x Find x if: x x x Divide into three parts such that the second part will be less than twice the first, the third will be 8 more than the first

4 The unit digit of a two digit number is more than the ten s digit If the number formed by reversing the digits is added to the original number, the sum becomes 88 Find the number Four Marks Questions Solve check your answer: x x x x x x x Solve check your answer: x x x 8 Solve for x: x 0 9 The ages (in yrs) of Ramesh Rahim are in the ratio : If Ramesh were 9 years older Rahim 9 years younger, the age of Ramesh would have been twice the age of Rahim Find their age 0 The distance between stations A B is 0 km Two motor cyclists start simultaneously from A B in the opposite direction the distance between them after hours is 0km If the speed of one motor cyclist is less than that of the other by 0km/hr, find the speed of each motor cyclist ======================================== Science Physics What is force? Give its different effects How contact force is different from non-contact force? Give one example of each What is pressure? Give its mathematical relation Explain Why: a) Hles of school bags are made wider b) Needle of injection syringe are made sharp c) Tyres of tractors are made wider

5 d) Sharp knife can cut well than blunt knife What is liquid pressure? Explain with an activity that the liquid pressure increases with depth Chemistry Differentiate between synthetic fibres natural fibres with examples Differentiate between Thermosetting thermo plastics with examples Name any five synthetic fibres their uses Give some uses of plastic in (a) medical field (b) House hold appliances (c) Electrical appliances How plastics are harmful to the environment? How can you minimize it? Biology Name some traditional tools used in harvesting What name is given to the branch of agriculture dealing with breeding, feeding, shelter health of the domestic animals? Name the Nitrogen fixing bacteria present in the root nodules of leguminous plants Which is the first step of cultivation of crop? If there is more grass in a crop field, how does it affect the crop production? Frequency of irrigation depends upon the season the types of crops Explain How soil is prepared for sowing of seeds? 8 Describe the sprinkler system of irrigation state its advantages 9 What is fertilizer? Name any two fertilizers State two harmful effects caused by excessive use of fertilizers 0 What is weeding? Why weeding is necessary? Name one weedicide How combine is used in agriculture? What is meant by Kharif Crops? Give two examples of Kharif Crops Differentiate between Kharif crops Rabi Crops Write the advantages of Manure What are biotic abiotic factors affecting crops during storage? Prepare an assignment to differentiate modern traditional tools used in irrigation harvesting by drawing figures =================================== English Prepare an assignment on tense (in A size Paper) (a) Definition (b) Types (c) Aspects (d) Structure usages Write an article on food adulteration (in 0 to 0 words) Prepare a speech on Are Women Secured now? (In 0 to 0 words) Construct a story that ends with a moral Everyone deserves a free fair trail (0 to 0 words) ==============================================

6 Social Science Identify the state its capital in Political map of India Write the importance of History Discuss the division of history into different periods chapters Write the example of human made resources Write the importance of Human resources

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