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Daly College, Indore
Winter Break Assignment – 2015-16
Class – VII
Subject
Winter Break Assignment
English
Solve Unit 6 and & 7(Building Bridges, Pictures of the Past) of M.C.B in the text book .Mark answers
in the text book.Read a novel and write a review(150-200 words) in the English note book .
Hindi
Sanskrit
French
German
Mathematics
Compréhension écrite, Les articles (Définis, Indéfinis et Partitifs), Les adjectifs possessifs.
. Choose a German city and highlight reasons on why you would like to visit the Same!( on an A4
size chartpaper ) Write a paragraph in German about your city “INDORE” – in your notebook.
1. Find the circumference of the circles with
(i)
Radius = 35 cm (ii) Diameter =49 cm
2. Find the area of a circle whose radius are :
(i)
21 cm
(ii) 49 cm
3. Find the perimeter and area of a parallelogram whose adjacent sides are 42cm and 30 cm in
length and altitude to the side 42 cm is 10 cm in length .
4. Find the area of a rectangular lawn whose length 20cm and breadth 14 cm . Also find the
cost of planting roses in it at the rate of Rs. 30 per m2 .
A
5. ∆ABC is right angled at A. AD is perpendicular to BC. If AB
= 5 cm, BC = 13 cm and AC = 12 cm, find the area of
∆ABC, also find the length of AD.
12 cm
5 cm
B
D
13 cm
C
6. The radius of a circular pipe is 10 cm. What length of a tape is required to wrap once
around the pipe. (π = 3.14)
7. From a circular sheet of radius 4 cm, a circle of radius 3 cm is removed. Find the area of the
remaining sheet. (π = 3.14)
8. If the circumference of a circular sheet is 154m, find its radius. Also find the area of the
sheet.
2
9. A gardener wants to fence a circular garden of diameter 21 m. Find the length of the rope he
needs to purchase, if he makes 2 rounds of fence, also find the cost of the rope, if it costs Rs
4 per meter. (π = 22/7)
10. Sudhanshu divides a circular disc of radius 7 cm in two equal parts. What is the perimeter
of each semicircular shape disc? (π = 22/7)
11. A path of 5 m wide runs along inside a square park of side 100 m. find the area of the path,
also find the cost of cementing it at the rate of Rs 250 per 10
m2.
B
A
12. Two cross roads, each of width 10m, cut at right angles
through the centre of a rectangular park of length 700 m and
breadth 300 m and parallel to its sides. Find the area of the
roads, also find the area of the park excluding cross roads.
Give answer in hectares.
13. A rectangular lawn with a circular flower bed in
the middle. Find (i) the area of the whole land, (ii)
the area of the flower bed, (iii) the area of the lawn
excluding the area of the flower bed, (iv) the
circumference of the flower bed.
E
F
H
G
D
C
B
A
2m
P
5m
O
D
C
10 m
Q
P
14. Find the area of the shaded portion.
20 Cm
T
10 Cm
S 10 Cm U 10 Cm
R
B
3 cm
N
A
15. Find the area of quadrilateral ABCD. Given AC = 22 cm,
2 2 cm M
3 cm
D
C
3
BM= 3 cm, DN= 3 cm and BM  AC, DN  AC.
16. Two square lawns ABCD and PQRS are of sides 10cm and 9 cm each respectively, which
square has the larger perimeter and by how much.
17. Which encloses more area, a square of perimeter 88 cm or a circle of circumference 88 cm.
18. Construct a triangle ABC, given that AB = 5 cm, BC = 6 cm and AC = 7 cm.
19. Construct a
PQR with PQ = 4 cm, QR = 3.5 cm and PR = 4 cm. What type of triangle is
this?
20. Construct an isosceles triangle in which length of the equal sides is 6.5 cm and the angle
between them is 700.
Physics
Answer the questions in the space provided and paste this sheet in your Physics Notebook.
1. Choose the correct option :
1. Bouncing back of light in same medium is called
a. Refraction
b. Reflection
c. Rarefaction
d. Retardation
2. When light bounces off a surface, the surface is
a. Reflector
b. Opaque
c. Transparent
d. Translucent
3. A common magnifying glass is an example of
a. Concave mirror
b. Convex mirror
c. Convex lens
d. Concave lens
4. Shaving mirrors are usually
a. Concave
b. Convex
c. Plane
d. Biconcave
5. Concave lens is also known as
a. Converging lens
b. Diverging lens
c. Biconcave lens
d. Bifocal length
6. The splitting of white light into seven colours is called
a. Spectrum
b. Splitting
c. Dispersion
d. Rainbow
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7. Regular reflection takes place by
a. Plane surface
b. Smooth surface
c. Rough surface
d. Transparent surface
2. Fill in the blanks
a. Bodies which give out their own light are called -------------------------.
b. Regular reflection takes place from the --------------------- surfaces.
c. ------------------------- refers to collection of rays.
d. ----------------------- mirror is used as rear view mirrors in automobiles.
e. White light is composed of many ----------------------------------.
3. Match the following
Column A
a. Real image
Column B
i. Image behind the mirror
[
]
b. Virtual
ii. Image in front of the mirror
[
]
c. Plane mirror
iii. Image is same size as object
[
]
d. Concave mirror
iv. Inverted image
[
]
e. Convex mirror
v. Erect image
[
]
4.Solve the cross puzzle using clues given below.
Across
1. It is transparent with at least one curved surface.
3. Spherical mirror used as a rear view mirror in vehicles.
4. Bouncing back of light rays.
5. Scientist who showed through a disc that light is made of 7 colours.
Down
2. Band of seven colours
5. Spherical mirror in which reflection takes place at the inner surface.
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5.Rearrange the letters to form meaning full words related to light.
a. LETCREFION……………………………………. b. MAIEG …………………………………
c. CAVECON ……………………………………… d. TPECSTRMU …………………………
e. SENCL …………………………………………… e. RM PSI…………
Chemistry
Chemistry -Winter Break Assignment
Name_________________
Class VII
Section_________
1. Give two ways in which a chemical change is different from a physical change.
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
2. Two colors of paint are mixed together and cannot be separated. Is this a physical or chemical
change? Why?
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
3. Identify the following reactions by writing a C if the change is chemical and a P if it is physical.
1. ____ A bowl of cereal and milk
2. ____ Mixing baking soda and vinegar
3. ____ Detergent removing a stain
4. ____ Lighting a match
5. ____ Roasting a peanuts
6. ____ Crushing aluminum cans
7. ____ burning petrol
8. ____ Shredding paper
9. ____ Using hot glue
10.____ Digesting food
11. ____________ glass breaking
12. ____________ mixing salt and water
13. ____________ hammering wood together
14. ____________ mixing oil and water
15. ____________ a rusting bicycle
16. ____________ water evaporating
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17. ____________ melting butter
18. ____________ cutting grass
19. ____________ separate sand from gravel
20. ____________ burning leaves
21. ____________ bleaching your hair
22. ____________ fireworks exploding
23. ____________ frying an egg
24. ____________ cutting your hair
25. ____________ squeeze oranges for juice
26. ____________ crushing a can
27. ____________ melting ice
28. ____________ boiling water.
Q4. Write word equation for the following:
1. Brisk effervescence of Carbon dioxide is given out when vinegar is added to baking
soda.
_______________________________________________________________
______________________________________________________________
2. Magnesium ribbon burns with a dazzling white light.
_____________________________________________________________
_____________________________________________________________
3. Carbon dioxide is passed in lime water.
_________________________________________________________________
______________________________________________________________
4. Iron nail is placed in copper sulphate.
________________________________________________________________
________________________________________________________________
Q5. Name the constituents in the following molecules:
a) NaOH ------------------------ b) KNO3
--------------------------- c) Mg(OH)2
------------------
--------------------------------
-----------------------------
--------------------
---------------------------------
------------------------------
--------------------
Q6. How will you convert an impure sample of salt into pure?
_______________________________________________________________
________________________________________________________________
_____________________________________________________________
_______________________________________________________________
Q7. Match the column:
Column A
Column B
i) Formula of Ammonium Hydroxide
Lime Water, Ca(OH) 2
ii) Common name and formula of Calcium Hydroxide
NH 4 OH
iii) Reaction of acid and base to form salt and water
Galvanization
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iv) Coating of a layer of zinc over iron
Neutralization
BIOLOGY
WINTER HOLIDAY HOMEWORK 2015
"Draw and label any one of diagram”
(A) Section of human heart
(B) Human excretory system.
Use A4 size card sheet, shed the diagram with colour or use any innovative idea of making diagram.
History &
Civics
Make a flash card on A4 size paper in any saint of the medieval age covering the
following items:
1. Birth 2.Picture of saint 3. Important contribution, social, cultural, or literary
etc. 4. death
The work will be assessed on the following points
1. Creativity- 3 marks 2. Content- 5Marks 3. Neatness- 2 Marks 4. Punctuality- 3
marks 5.Viva- 2 marks
Geography
Case Study: Sahara Desert-(On the basis of following headings) 1. Location 2. River, 3.Climate, 4.
Flora and Fauna, 5.Human Activities such as; agriculture, Industries, Mining
Computer
Science
Q1. Write down the output of the following functions:( look at the Excel sheet for data)
1
2
3
4
A
B
S.No
Name
6
7
D
Houseno
100
1
ADARSH BUBNA
J-74535
2
A-5666
4
ADITYA JAIN
ADITYA SINGH
ADNAN SAIFEE
5
AKSHAT AGRAWAL
R-74535
AMRITANSH SHARMA
A-5666
3
5
C
6
78
67
87
V-74535
R-5666
67
39
1. =Mod(29,3) 6. =product(D3,A3)
11. =concatenate(B2,C2) 15.
=count(B2:B7)
2. =left(B2, 5) 7. =minA(D2:D5)
12. =Average(D2,D3,D6) 16. =sum(d3:d7)
3. =Mod(32,6) 8. =now()
13. =upper(C1)
17.
=counta(A1:A7)
4. =Max(D2:D7) 9. =if(D4>D5, “D4 is better”, “D5 is better”)
18. =lower(b6)
5. =len(B5)
10. =mid(B5,3,7)
14. =right(B6,4)
19.
=mid(b7,3,6)
Q2. Read the data as shown in column A and write suitable functions in column C so as
to get the
results shown in column B.
A
1
2
3
B
Entry
Result
The Daly College Daly
Bharati House
BHARATI
HOUSE
C
Function
8
4
5
6
7
Gymnasium
Auditorium
Ashok
CTDC
Gym
torium
5
ctdc