CLASS 8
Summer Vacation is probably the best time of the year for you all. With learning happening at all times, summer vacation can also be a time for learning with lots of activities around.
Here is a task for you to be completed during the
vacation. Do remember to complete the given task after reading the criteria carefully.
You need to bring your research work to school on the first day of school without fail.
Some Tips to make this holiday special:
Watch good movies and try out writing about the positive and negative aspects of thefilm. Read interesting books and explore different genres of books online.
Do’s:
Do drink lots of water.
Do wear light cotton clothes.
Do have plenty of seasonal fruits like musk-melon, water-melon, orange,
cucumber, etc.
Do drink a glass of buttermilk at every meal.
Do study for half an hour to one hour every day.
Some Do’s and Don’ts during Summer Vacation:
Get involved in indoor games. Play board games with your parents and sibling and show them who is the smartest
Don’ts:
Don’t venture out of house in afternoon sun.
Don’t have junk food.
Don’t watch too much TV.
Don’t waste time in being lazy.
MATHS- Holiday Home Work (2020-21) 1. The additive inverse of 8/9 is:
(a) 9/8 (B) – 9/8 (c) – 8/9 (d)1 2. The multiplicative identity of – 8 is:
(a) 8 (b) 1/8 (c) - 1/8 (d) 1
3. Rational number – 7 lies between:
(a) 0 and 7 (b) 3 and 8 (c) 0 and 10 (d)
-14 and -3
4. Given a = 11, b = 3, the value of (ab)-1 is:
(a) 1/11 (b) 1/14 (c) 1/8 (d) 1/33
5. The value of -9/0 is:
(a) 0 (b) not defined (c)-9 (d) 9
6. The multiplicative inverse of a rational number is: (a) -1 (b) 0 (c) its reciprocal (d) 1 7. The number which should be added to – 1/3 to get -2/5 is:
(a) -11/5 (b) -1/15 (c) 1/15 (d) 11/15 8. A square cannot end with digit:
(a)1 (b) 5 (c) 2 (d) 9
9. Which of the following is possibly a perfect square?
(a) 28397 (b) 334000 (c) 4937284 (d)
235383
10. Square of 3257931 will end with digit:
(a)1 (b) 2 (c) 3 (d) 4 12. Which of the following squares will not end with digit 9? : (a) 3372 (b) 4832 (c) 2862 (d) 1972
13. Square of which of the following numbers is odd?
(a)284 (b) 300 (c) 495 (d) 172
16. The square of – 95 is:
(a) 9025 (b) - 9025 (c) 7225 (d) - 7225 17. The value of √81 is:
(a) Only 9 (b) only - 9 (c) 9 0r - 9 (d) none of these
18. √0.09 is:
(a) 0.03 (b) 0.3 (c) 3.0 (d) none of these 19. If x2 = 7225 then x =?
(a) 75 (b) 95 (c) 85 (d) none of these
20. (18)2 – (8)2 is:
(a) -260 (b) 240 (c) 620 (d) 260
21. The sum of two opposite angles of a rhombus is 160:. The measure of each of the other angles is:
22. The diagonals are not perpendicular in a:
(a) Kite (b) rhombus (c) rectangle (d)
square
23. Sum of all interior angles of a hexagon is:
(a) 360: (b) 720: (c) 540: (d) 900:
24. Each interior angle of a regular polygon is 5 times that its exterior angle. The
Number of sides of the polygon is:
(a) 10 (b) 11 (c) 12 (d) 13 25. A rhombus is not a :
(a) Parallelogram (b) trapezium (c) kite (d) square
26. The solution of equation 9/m =81 is:
(a) 1/9 (b) 9 (c) 729 ( d) 72 27. The root of the equation x -3/2 = 11 is:
(a) 3/2 (b) 25/2 (c) - 25 (d) 7 28. If 4 times a number increased by 3 is 39 the number is:
(a) 5 (b) 6 (c) 7 (d) 9
29. A number when added to twice of itself gives 45, the number is: (a) 14 (b) 15 (c) 16 (d) 17
30. If – y -7 = -13 then the value of y is:
(a) -6 (b) 9 (c) 6 (d) - 1 31. The area of a square is 2025 cm2, its side is:
(a) 80 m (b) 180 cm (c) 45 cm (d) 90 cm 32 Diagonal of a square is 32 cm. Then area of square is:
(a) 1/64 cm2 (b) 64 cm2 (c) 512 cm2 (d) 8 cm2
33. The surface area of a cube with edge 10 cm is:
(a) 60 cm2 (b) 600 cm2 (c) 400 cm2 (d)
none of these
34. Area of 4 walls of a cuboid whose length is 6 cm, breadth is 4 cm and height
Is 2 cm is:
(a) 60 cm2 (b) 20 cm2 (c) 40 cm2 (d) 80 cm2
35. Area of 4 walls of a room is 144 cm2 and height is 4 cm, then
perimeter is:
(a) 24 cm (b) 18 cm (c) 36 cm (d) 576 cm2
36. 9000 cm3 is same as:
(a) 9 l (b) 9 kl (C) 9 m3 (d) can’t say
37. The diagonal of a cube is √3 m. Then its volume is:
(a) 3 m3 (b) 1 m3 (c) 3 cm2 (d) 3√3
m3
38. Cost of white washing the wall and roof of a cubical room of edge 8 m at the
Rate of ₹ 25 per m2 is:
(39) Find the additive inverse of the following: (a) -13 (b) 18 (c) -2/3 and (d) 4/5
(40) Find the multiplicative inverse of the following: (a) – 11 (b) 39 (c) – 7/8 and (d) 3/4
(41) Multiply 6/13 by the reciprocal of -7/16.
(42) Insert two rational numbers between 2/3 and 4/5. (43) Represent on the number line: (a) 2/3 and (b) 4/5. (44) Solve: 7x – 9 = 16.
(45) Solve: x/3 +1 = 7/15.
(46) Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.
(47) Two numbers are in the ratio 5:3. If they differ by 18, what are the numbers?
(48) Solve: 5x – 3 = 3x – 5.
(49) In a quadrilateral ABCD, <A = 7000, <B = 800 <c = 1000 , find <D.
(50) In a quadrilateral PQRS, <P = 800 ,<Q = 1200 and angle R and S are equal .Find angle R and angle S.
(51) In a parallelogram ABCD, AB = 10 cm and BC = 8 cm, find the perimeter.
(52) Find the measure of each exterior angle of a regular polygon of 9 sides.
(53) Find the sum of all interior angle of a polygon having side 6 (54) Prepare a working model of quadrilaterals.
(55) Prepare a PowerPoint presentation on quadrilaterals, which includes the following points:
1. What are quadrilaterals? 2. Types of quadrilaterals
.
3. Angle sum property of quadrilaterals. 4. Uses of quadrilaterals
NOTE :- You have to do all the sums in a separate note book . ENGLISH-
1. Write at least two idioms and phrases for each chapter you have read during online
classes and relate the situation along with them
2. Write a letter to your uncle who stays in China explaining about the pandemic effect
of coronavirus in India.
3. Convert chapter ‘How Camel got his Hump’ and chapter ‘The Best Christmas Present
in the World’ into note making. HINDI:-
SST-
INVESTIGATORY TOPIC
Global Warming
THEME Be the Change you want to see in the World.
OBJECTIVE
1. Students will learn about the impact of Global Change. 2. Students will learn to create best out of waste items. 3. Students will create awareness about steps to curb Global
Warming.
GUIDELINES
1.The total length of the project should not be more than 20 pages of A4 size sheets
2.The project is to be handwritten and grade will be awarded based on the original drawings, illustrations and creative use of materials.
3.The project will be presented in a neatly bound simple folder. Please avoid plastic cover, instead use handmade paper file.
4. The project report will be developed and presented in the following order:
Page 1: Cover Page showing project title, student information, school and year.
Page 2: Table of Contents: List of contents with page numbers.
Page 3: Acknowledgements: Acknowledging persons who
have guided on the project
Page 4: Project Overview: Aim, Methodology and
experiences while doing the project.
All the photographs & sketches should be labeled and acknowledged. Complete the data collected and present the project properly. Do not forget to give conclusion/observations/ finding/ recommendations at the end along with proper
references.
NOTE: NO DIRECT DOWNLOAD FROM THE INTERNET.
SUBJECT TASK
A. Social Science
The Year 2020 has been one of the most phenomenal year of our lives with the introduction of COVID-19 into our world. It has not been easy for us with the lockdown and the
looming threat of a disease with no vaccine. However, we have also seen a positive effect of the lockdown across nations.
Project 1: Make a PPT to compare the effects of the COVID-19 on Climate Change and the Environment before and after the lockdown.
Summer isn’t all just fun and games. It’s also the best time to clean all the clutter and rearrange your rooms.
SCIENCE
-1. Identify the device attached to the tractor and state its use.
Uses:________________ Merit:_______________
2. A young girl went to visit her grandparents living in the nearby village. She is on the
way the farmers title the land before sowing seeds. After returning home, she
decided to grow few tomato or pea plants in her kitchen garden. Write few points the girl should remember about seats in order to get a good crop.
3. Identify the following devices and state their use:
4. Make an electric circuit to test whether electricity can pass through an object or not. Repeat this activity with the materials given in the table. Observe and group this materials into good conductors and poor conductors.
S.NO Materials Good/poor conductor
1. Iron rod
2. Coal Piece
3. Copper wire
