Class 7
Geography
Chapter 2
Atmosphere
EX.1
Fill in the blan
a]Atmosphere
b]gravity
c]Pauses
d]stratosphere
e]Green
house effect
f]Global warming
EX.2 Match
the following
a]Global
warming-climate change
b]Exosphere-Thinnest
layer of atmosphere
c]Troposphere-
lowest layer of atmosphere
d]Insolation-solar
radiation reaching Earth surface
e]Coal-Fossil
fuel
EX.3
TRUE/false
a]False
b]True
c]False
d]True
e]False
f]True
g]True
EX.
4 Answer the following
a]
21%
b] The
exosphere is the upper-most layer of the
atmosphere.this layer has very scattered
gases
and gravitational pull of earth is minimum in
this layer.
C] Nitrogen and Oxygen
D] Carbondioxide gas creates greenhouse effect
in the atmosphere. Greenhouse gases act like
blanket around the earth,wrapping energy into
atmosphere. This is the cause of the earth becoming
warmer.
E] A natural process that warms the earth’s
surphace. When the sun’s energy reaches the earth
atmosphere sum of it is reflected back to space and
the rest is absorbed anjd re-radiated by
greenhouse gases.
F] Meteors burn up in mesosphere because of air
resistance and friction.
Ex.5 Answer in
detail:-
A] Earth’s atmosphere is composed of about 78%
nitrogen,21% oxygen and 0.93% argon.The rest of the
gases which are less than 0.1% contains small but
important traces of gases,including water
vapour,carbon dioxide and ozone.
B]The different layers of atmosphere are
troposhphere,stratosphere,mesosphere,thermosphere
and exosphere.
1:-Troposphere:This
is the lowest layer of atmosphere.Water vapour and
dust particles are present in this layer,all weather
occurs withinn this layer.
2:-Strotosphere:-This
is ther second layer of atmosphere.ozone is present
in this layer and protect the earth from harmful
ultraviolet rays.
3:-Mesosphere:
Mesosphere is the layer after stratosphere.Thew
mesosphere has coldest temprature in the atmosphere
meteors are burn up in this layer.
4:-Thermosphere:
This layer is directly above mesosphere. Temprature
slowly increases in this layer.
5:-Exosphere:
Exosphere is the upper most layer of the atmosphere.
This layer has very scattered gases and the
gravitational pull of earth is minimum in this
layer.
C] Causes of Green House effect are as follow:-
1-Burning of fossil fuels
2-
Deforestation
3-
Increase in population
4-
Farming
5-
Industrial waste and landfills
D] Impact of global warming are:-
1-
Graciers melting and sea level rising
2-
Migration of animals
3-
Extreme of weather condition / Temperature
4-
Change in eco-systems
5-
Heavier precipitation and flooding
6-
Changing of seasons
7-
Extinction of plant and animal species
E] Global warming can be reduced and controlled by
following measures:-
1-
Using re-cyclable products
2-
Using energy efficient products
3-
Planting more trees
4- Reducing
pollution
5-
Reduce deforestation activity
6-
Government limitations on the amount of harmful gas
emissions from industries
Ex-6
Learning is fun:-
Across
3-Atmosphere
8-Global warming
9-Exosphere
10-Oxygen
11-Coal
DOWN
1- Greenhouse effect
2-
Landfill
4-
Stratopause
5-
Ozone
6-
Biome
7-
Insolation
Draw
Diagrams of compostition of atmosphere/ Air
(pg-11)
And
Structure of
Atmosphere
(pg-14)
Chemistry,
Lesson-2
CHOOSE THE CORRECT OPTIONS-(answers)
1)
d-the burning of kerosene
2)
c-the digestion of food
3)
d-burning
4)
b-respiration
5)
b-photosynthesis
FILL IN THE BLANKS-(answers)
1)
does not changes
2)
an irreversible change
3)
exothermic reaction
4)
solute, solvent
5)
water vapour
6)
moisture
TRUE/FALSE-
1)
false (a physical change is reversible)
2)
false (a chemical change is irreversible)
3)
true
4)
true
5)
true
6)
True
SHORT QUESTIONS-
1Q- What are reversible changes?
Ans- Reversible changes are those changes which can
be reversed by reversing back the conditions. Eg-
melting of ice.
2Q- What are irreversible changes?
Ans- Irreversible changes are those changes which
cannot be reversed by reversing back the conditions.
Eg- burning of coal.
3Q- Classify the following into desirable and
undesirable changes.
Ans-(a) the spoiling of food- undesirable change
(b) the digestion of food- desirable change
(c) the rotting of an egg- undesirable change
(d) the decaying of dead animal in open air-
undesirable change
4Q- Define physical changes.
Ans- The changes in which no new substances are
formed and which can be reversed by reversing back
the conditions are called as physical changes. Eg-
melting of ice.
5Q- Define chemical changes.
Ans- The changes in which new substances are formed
and which cannot be reversed by reversing back the
conditions are called as chemical changes. Eg-
burning of coal.
6Q- Classify the following into physical and
chemical changes.
Ans- (a) the melting of ice- physical change
(b) rusting- chemical change
(c) cooking of food- chemical change
(d) fermentation- chemical change
(e) the evaporation of liquid- physical change
(f) the sublimation of iodine- physical change
(g) the dissolution of solid- physical change
(h) the burning of coal- chemical change
(i) the glowing of bulb- physical change
(j) the freezing of water- physical change
(k) the curdling of milk- chemical change
(l) photosynthesis in green plants- chemical change
(m) the condensation of water vapour- physical
change
(n) the digestion of food- chemical change
(o) the boiling of an egg- chemical change
(p) the growth of a plant- chemical change
7Q- Define an endothermic change.
Ans- A change in which heat is absorbed is called an
endothermic change. Eg- melting of ice.
8Q- Define an exothermic change.
Ans- A change in which heat is evolved is called an
exothermic change. Eg- burning of coal.
9Q- Classify into exothermic and endothermic
changes.
Ans- (a) the dissolution of glucose- endothermic
change
(b) the boiling of water- endothermic change
(c) burning- exothermic change.
LONG QUESTIONS-
1Q- Give two examples to show that the mass of the
individual substances undergoing a chemical change
is altered.
Ans- The mass of the individual substances
undergoing a chemical change is altered. For eg-
1)
When carbon is burnt in air, the amount of carbon is
reduced and carbon dioxide is given out.
2)
If an iron nail is allowed to rust, the mass of the
rusted nail is more than that of the original nail.
2Q-
State the difference between a physical and a
chemical change.
Ans-
PHYSICAL CHANGE
|
CHEMICAL CHANGE
|
1)
A physical change is temporary
|
1)
A chemical change is permanent.
|
2)
A physical change is reversible
|
2)A chemical change is irreversible.
|
3)
No new substances are formed in a physical
change.
|
3)New substances are formed in a chemical
change.
|
4)The mass of substance do not change in a
physical change.
|
4)The mass of individual substances
undergoing a chemical change are altered.
|
5)Eg- melting of ice.
|
5)Eg- burning of coal.
|
3Q- Discuss an example to show that physical and
chemical changes can occur simultaneously.
Ans- Physical and chemical changes can occur
simultaneously. This can be proved by taking the
example of burning of a candle. When a candle burns,
following changes occur-
Physical change-
the wax under the wick gets heated and melts. The
molten wax flows down and solidifies. Thus the
change in state is from solid to liquid and again
from liquid to solid, which are physical changes.
Chemical change-
a part of the molten wax
vaporizes and burns to form new substances,
carbon dioxide and water vapour. This change is
irreversible. So burning of wax is a chemical
change.
4Q- Give
one example of each kind, show that a change in
energy takes place when a physical or a chemical
changes occurs.
Ans- Energy changes are observed when a physical or
a chemical changes occurs.
1)
Energy change in a physical change-
Eg- melting of solid and evaporation of liquid are
carried out with the absorption of heat while
condensation is carried out with the evolution of
heat.
2)
Energy change in a chemical change-
Eg- when a coal or wood is burnt, heat and light are
emitted. So, burning is an exothermic process.
5Q- What is respiration? Explain.
Ans- When the oxygen of the air we breathe in
combines with the glucose formed by the breakdown of
food in our body,
new substances such as carbondioxide and
water are formed. This process is called as
respiration. This change is not reversible and is
therefore a chemical change.
Glucose + oxygen
→
carbondioxide + water + energy.
Class 7
Class 7
GEOGRAPHY Chapter-1
EX-1.Fill ups
a.blue
b.verbal
c.topography
d.contour
e.small
f.large scale
Ex-2 Match the following
A=5
B=3
C=1
D=2
E=6
F=4
Ex-3 True/False
a.F
b.F
c.T
d.T
e.F
f.T
EX-4
(a)A detailed
representation of natural and human-made features on the
Earth's surface.
(b)The ratio of a distance on the
map to the corresponding distance on the grounds in
words.
(c)Blue colour is used to show water bodies in
a map.
(d)Red represents man-made festures,like roads
or political boundaries,settlements.
(e)The scale of
the map can be represented in threeways.
(1)
statement scale or verbal scale.
(2) The
representative fraction or numerical fraction (RF).
(3) The graphical scale or linear scale.
(f)The
linear scale of a map is a bar which usually represents the
true distance of an
unit length on the map
(g)Large- scale maps depict a small territory.A large-scale
map only shows a small area
but in great detail
(h)The signs and symbols used in a map to show diffrent
festures of map these common signs
and symbols are
called conventional signs and symbols.
(i)A person
who makes maps.
Ex-5
(a)Topography refer to
the arrangement of natural and artificial physical features
of an
area.
A topographic map shows how the ground is
shaped provides a way to calculate the height
of the
features on the map .
(b)A line on a map joining
points of equal height above or below sea level.
(c)Cartographers Use colour On A Map to represent specific
features.
1 Green colour indicates vegetation such as
forests,wooded area,orchards and vineyards.
2 Brown
colour is used to denote most contour line on a map,which
are relief features
and elevatoions.
3 Red colour
represents man made features, like main roads and politicial
boundaries,
settlements.
4 Yellow indicates all the
cultivated areas.
(d)The numerical scale of a map
indicates the relationship of distance measured on a map
and the corresponding distance on the ground.
(e)
1}SMALL-SCALE MAPS represent a lagre area.In a small scale
map,the size of objects
will be smaller and will have
less details,for ex.map of a country.
LARGE-SCALE
MAPS depict a small territory. a large scale map only show a
small area
but in great detail for ex. map of a town or
a city.
2}A topographical map contains detailed
information about local landforms,water bodies,
roads,railway tracks and buildings.
A thematic map
includes information of a specific theme or topic such as
rainfaLL
3}Verbal map scale:A map scale that
expresses the relationship between distance on
the map
and distance on the gound in words.
Linear Scale:The
linear scale of a map is a bar which usually represents the
true
disctance of an unit length on the map.
(F)The four major directions north,east,west and south are
called cardinal directions.
These are further divided
into north-east,south-east,south-west and north-west
which are known as intermediate directions.
(G)
Direction is a major component of a map. Most maps contain
an arrow marked with the
' letter 'N' at the upper right
hand corner.This arrow shows the north direction and
therefore is called the north line.Once the north direction
is confirmed,the other
direction-east,westands south can
be easily found.
EX-6 LEARNING IS FUN
ACROSS
6.Yellow
7.Green
8.Contour lines
9.Map
10.Verbal
DOWN
1.Cartographer
2.Cardinal
3.Keys
4.Topography
5.Legends
Class 7 Biology
Chapter 1 - Tissue
ExA.Fill in the blanks.
1.tissue.
2.meristematic.
3.cambium.
4.xylem.
5.epithelial.
6.adipocytes.
7.muscles.
8.vascular or fluid.
9.cardiac.
10cyton.
ExB.True-False
1.false, permanent tissue arises from meristematic tissue.
2.false, parenchyma is a simple permanent tissue.
3.true.
4.false,phloem is a living tissue.
5.true.
6.true.
7.false, cartilage is a kind of skeletal tissue.
8.true.
9.true.
10.false, skeletal muscles are voluntary muscles.
ExC.Choose the correct option.
1.(b),
2.(d),
3.(b),
4.(c),
5.(a),
6.(d),
7.(c),
8.(c),
9.(a)
Ex D.Answer the following.
Ans1.Meristematic tissue has the ability to divide continuously to
produce new cells and thus responsible for the
growth of the plant.
Ans2.Epithelial tissue forms a thin covering on the outer
surface of the body,as well as on the outer and
inner surface of organs, ducts,tubes and vessels.
This tissue provides protection from injury and germs, and helps in
absorption and secretion.
Ans3.Areolar tissue forms a continuous layer under the
skin and packs the spaces between various organs to
keep them in place.
Adipose tissue cushions various parts of the body to protect them from
injury and insulates the body against the cold.
Ans4.Cartilage is made of cells called chondrocytes.The cells
have wide spaces between them and are embedded in a
jellylike matrix.This makes the tissue elastic and
thus capable of absorbing the shock of friction
between bones.
Ans5.Blood contains the following components:1)RBCs
2)WBCs and
3)platelets.
Blood transports oxygen, carbondioxide,digested food and waste, protects
us from diseases,and regulates body temperature.
Ans6.Neurons transmit messages from all parts of the body to
the brain and spinal cord and vice-versa.Also draw
the fig1.11 in your classwork copy.
ExE.Explain in brief.
Ans1.If no cambium is present in a plant body,the plant will
not grow in thickness as cambium is responsible for
the lateral growth of the plant.
Ans2.Simple permanent tissue in plants is of three types:
1)Parenchyma:
Structure:The cells of this tissue may be oval, spherical or
polygonal.The cell wall is thin and there are spaces
between the cells (intercellular spaces). Function:
Parenchymatous cells store food and water,besides
helping in the manufacture of food.
2)Collenchyma:
Structure:The cells of this tissue are thick-walled and elongated,with
oblique or tapering ends.There are no intercellular
spaces,as pectin and other substances are deposited
between the cells.
Function:The function of these cells is to provide support and
flexibility to the plant body.
3)Sclerenchyma:
Structure:It is made of dead cells that are packed together
closely.The cells are elongated with pointed
ends.The cell wall is thick due to the presence of a
chemically complex substance called lignin.There
are no intercellular spaces between the cells of Sclerenchyma.
Function:These cells provides strength to the body of the plant.
Fig 1.2 should be drawn in this answer.
Ans3.Complex permanent tissue is of two types:
1)Xylem:
Structure:It is made mostly of dead cells.These are either tracheids or
vessels and some Sclerenchymatous cells.There are
some Parenchymatous cells,too.vessels and tracheids
are elongated cells with thick lignified walls.They
are hollow and join each other end to end.They,thus,
form something like a long pipe, through which water
moves up.
Function:It conducts water and minerals from the roots to the leaves.
2)Phloem:It is a living tissue made mostly of sieve cells and companion
cells.They are associated with some Parenchymatous
and Sclerenchymatous cells.The sieve cells are
elongated cells joined end to end, with perforated
plates between them.The pores in the plates between
the cells provide a continuous route for the passage
of food.
Function:It is responsible for the transport of food to different parts
of the plant.
Ans4.Tendon:
1)Tendons attach muscles to bones.
2)They help in the movement of bones.
3) They are inelastic and tough
as it contains very little elastin.
Ligament:
1) Ligaments join bones together.
2)They support and stabilise joints.
3)They are more elastic and flexible as it contains more elastin.
Ans5.Bone is the hardest connective tissue.It contains three
types of cells-osteoblasts,osteocytes and
osteoclasts.osteoblasts produce a protein mixture
that hardens to form the bone matrix.Osteoblasts
eventually get trapped within the matrix and become
osteocytes.Osteoclasts are present are present near
the outer layer of bones and help to break down
damaged bone tissue,which is replaced by new matrix
produced by osteoblasts.
Function of bone:
1)Bones give shape and support to our body.
2)Bones protect our delicate internal organs like heart,brain ,lungs.
3)Bones bring about movement with the help of muscles.
4)Bone marrow,present inside the bones,is responsible for the formation
of blood cells.
Ans6.Some blood,minus RBCs and few other constituents, leaves
the blood capillaries and passes into the spaces
between tissues.This straw-coloured watery fluid is
called lymph.
Ans6.The three types of muscular tissue are:
1) Voluntary muscles:These muscles are attached to the skeleton and are
called skeletal muscles.They contract and relax
according to our will.
2) Involuntary muscles:These muscles contract and relaxing on their own
to carry out various life processes.e.g muscles of
the stomach and blood vessels.
3) Cardiac muscles:These muscles are present in the heart and are also
Involuntary in nature.
Class 7 Biology Chapter 6 - Allergy
s1. An unusual
reaction to a particular substance is called an
allergy and the substances that cause allergies
are called allergens.
The various types of allergens are
1) Airborne allergens
2)food and medicine allergens
3) contact allergens
Ans2.The four airborne allergens are
dust,pollen,spores of moulds and perfumes.The
symptoms caused by them are-
1)red,itchy,watery or swollen eyes
2)runny or stuffy nose
3) sneezing
4)itchy throat
5) wheezing or coughing
Ans3.The food items that cause allergy are
milk and milk products,soy and nuts .Medicines
causing allergy are penicillin and aspirin.
These allergens cause symptoms such as tingling
or itching sensation in the mouth and throat;
stomach ache; vomiting or diarrhoea;rashes or
hives;itchy,watery or swollen eyes.
Ans4.The four contact allergens are natural
rubber,nickel,wool and household cleaners.The
symptoms caused by them are intense itching or
burning sensation,redness of the
skin,rashes,blisters,hives or swelling of the
affected part of the skin.
Ans5.The symptoms caused in sunlight allergy
are itchy red rashes,hives or blisters on areas
of the skin exposed to sunlight.
Ans6.Seasonal allergies:
They occur during a particular season.
E.g: pollen, spores.
Perennial allergies:
They are year-round allergies.
E.g:dust,mould.
Ans7.Ways to prevent allergies are:
1)It is advisable not to have a pet if you are
allergic to pet dander.
2)Avoid food items and medicines to which you
are allergic.
3)Avoid using Cosmetics,perfumes and other
products to which you are allergic.
4)If you are allergic to sunlight,cover yourself
well when you go out
5) If you are allergic to pollen,keep the
windows of your house shut when the pollen
season is at its peak.
ExF Explain in brief:
Ans1.Dust mites live all around us,
especially in pillows,
mattresses,carpets,cushions,soft
toys,etc.They are quite harmless usually and
feed. on the dead skin that falls off our
bodies.Their saliva,faeces and particles from
their exoskeleton can trigger allergic
reactions.Cockroaches can also trigger allergies
in a similar manner.
Ans2.In very severe reactions,a person may
experience swelling of the tongue, throat and
face; coughing, wheezing and difficulty in
breathing or swallowing; dizziness or fainting
due to a sudden drop in blood pressure.Such a
severe reaction to an allergen is known as
anaphylaxis.
Food and medicine allergens and contact
allergens, in some cases, can lead to an
anaphylactic reaction.
Ans3.Insects like bees,wasps,etc inject
venom when they sting.This venom normally
produces a painful swelling and redness at the
site of the sting,followed by an itching or
burning sensation.But people allergic to such
venom may develop rashes,hives,
blisters,generalised swelling of the body,
difficulty in breathing or speaking, nausea, and
other symptoms of anaphylaxis.
Ans4.The following tests can be done to
determine sensitivity to allergens:
1)Skin prick test:In this test,a drop of liquid
containing the allergen is placed on the skin
and the skin is pricked with a small needle to
allow the allergen to enter the skin.If a lump
surrounded by a reddish area appears at the
site,the test is positive.
2)Patch test:In this test allergen containing
patches are applied to the skin, usually on the
back.The patches are removed after two days and
the skin is examined for reactions to the
allergens.
3)Blood tests: These tests are based on
identifying and measuring certain proteins.These
proteins called antibodies,are usually produced
to fight harmful bacteria and viruses. But in an
allergic individual,the body produces antibodies
in response to fight against normally harmless
substances.
Class 7
COMPUTER
(SPREADSHEET- AN INTRODUCTION)
1.
Tick the correct.
a.
Excel
b.
Cell
c.
1048576
d.
Active cell
e.
Range
f.
Name Box
g.
Ctrl + S
2.
True and False.
a.
True
b.
False (cannot-can)
c.
False (only 5- any no.)
d.
True
e.
True
f.
False (Block minus sigh- block plus sigh)
g.
True
3.
Fill in the blanks.
a.
Spreadsheet
b.
Rows and columns
c.
Arrow keys
d.
Undo
e.
Left
f.
Labels, values and formula
g.
.xlsx
4.
Define the following.
a.
Formula Bar- It is used to enter and edit formulas,
and perform calculations on our worksheet data.
b.
Cell- A cell is the intersection of each column and
row in a worksheet. A cell is the basic unit of a
worksheet in which we enter data.
c.
Cell Reference- A cell is referred to by its unique
address or cell reference, which is the coordinate
of the intersecting column and row.
d.
Worksheet window- The workbook contains sheets
called worksheets. By default, workbook contains
three worksheets. We can add additional worksheets.
e.
Name Box- The cell reference of an active cell is
displayed in the name box.
f.
Gridlines- The horizontal and vertical lines
representing the rows and columns on the worksheet
are called gridlines.
5.
Answer in 1-2 sentences.
a.
What do you mean by Spreadsheet software?
Ans:
Spreadsheet software allows user to organize data in
rows and columns, and performs calculations on the
data. These rows and columns are collectively called
a worksheet.
b.
How many rows and columns are there in a worksheet?
Ans: A
Spreadsheet file is called workbook, having many
individual worksheets. On each worksheet, data is
organized vertically in columns and horizontally in
rows. Each worksheet of Excel 2010 typically has
16384 columns and 1048576 rows.
c.
What is the default row height and column width in
Excel?
Ans: The
default row height is 15.00 (measured in points).
The default column width of a cell is 8.43 (measured
in characters).
d.
What is the use of generating a series?
Ans: Excel
uses AutoFill feature to recognize any series from a
single cell, such as the days of the week or month.
It will save our time to complete the text or number
series for us.
6.
Answer Briefly.
a.
What do you mean by Microsoft Excel? Write down its
uses.
Ans:
Microsoft Excel is a powerful spreadsheet program
that allows us to organize data, complete
calculations, graph data and develop reports Some
uses of MS-Excel are:
1.
Used for Manipulating Numbers:
Microsoft Excel is best known for manipulating
numeric data.
2.
Organize Data: We can also use Microsoft Excel for organizing data.
3.
Store Data as Worksheets: In Excel, we can store data which we enter in it as a file
called workbook.
4.
Share Data: MS-Excel allows us to share our data with other users.
b.
Differentiate between moving and copying.
Ans:
Moving
|
Copying
|
Data
allows us o re-organize data in our
worksheet. When we move data, the data
disappears from its original location
|
Data allows us to repeat data in our
worksheet without having to retype the data.
When we copy data, the data appears in both
the original and the new locations.
|
c.
Differentiate between workbook and worksheet.
Ans:
Workbook
|
worksheet
|
A Spreadsheet file is called workbook,
having many individual worksheets. On each
worksheet, data is organized vertically in
columns and horizontally in rows
|
The workbook contains sheets called
worksheets. By default, workbook contains
three worksheets. We can also add additional
worksheets.
|
d.
What do you understand by selecting cells?
Ans: We
have to select cells in Excel to perform editing,
calculating, and formatting tasks. The easiest way
to select a cell is to use the mouse to move the
block plus sign to the cell, and then click on it.
An alternative method of selecting a cell in a
worksheet is using the Arrow keys on the keyboard.
Class 7
GEOGRAPHY Chapter-1
EX-1.Fill ups
a.blue
b.verbal
c.topography
d.contour
e.small
f.large scale
Ex-2
Match the following
A=5
B=3
C=1
D=2
E=6
F=4
Ex-3 True/False
a.F
b.F
c.T
d.T
e.F
f.T
EX-4
(a)A
detailed representation of natural and human-made
features on the Earth's surface.
(b)The ratio
of a distance on the map to the corresponding
distance on the grounds in
words.
(c)Blue
colour is used to show water bodies in a map.
(d)Red represents man-made festures,like roads
or political boundaries,settlements.
(e)The
scale of the map can be represented in threeways.
(1) statement scale or verbal scale.
(2)
The representative fraction or numerical fraction
(RF).
(3) The graphical scale or linear
scale.
(f)The linear scale of a map is a bar
which usually represents the true distance of an
unit length on the map
(g)Large- scale maps
depict a small territory.A large-scale map only
shows a small area
but in great detail
(h)The signs and symbols used in a map to show
diffrent festures of map these common signs
and
symbols are called conventional signs and symbols.
(i)A person who makes maps.
Ex-5
(a)Topography refer to the arrangement of natural
and artificial physical features of an
area.
A topographic map shows how the ground is shaped
provides a way to calculate the height
of the
features on the map .
(b)A line on a map
joining points of equal height above or below sea
level.
(c)Cartographers Use colour On A Map
to represent specific features.
1 Green colour
indicates vegetation such as forests,wooded
area,orchards and vineyards.
2 Brown colour is
used to denote most contour line on a map,which are
relief features
and elevatoions.
3 Red colour
represents man made features, like main roads and
politicial boundaries,
settlements.
4 Yellow
indicates all the cultivated areas.
(d)The
numerical scale of a map indicates the relationship
of distance measured on a map
and the
corresponding distance on the ground.
(e)
1}SMALL-SCALE MAPS represent a lagre area.In a small
scale map,the size of objects
will be smaller and
will have less details,for ex.map of a country.
LARGE-SCALE MAPS depict a small territory. a
large scale map only show a small area
but in
great detail for ex. map of a town or a city.
2}A topographical map contains detailed
information about local landforms,water bodies,
roads,railway tracks and buildings.
A
thematic map includes information of a specific
theme or topic such as rainfaLL
3}Verbal map
scale:A map scale that expresses the relationship
between distance on
the map and distance on the
gound in words.
Linear Scale:The linear scale
of a map is a bar which usually represents the true
disctance of an unit length on the map.
(F)The four major directions north,east,west and
south are called cardinal directions.
These are
further divided into
north-east,south-east,south-west and north-west
which are known as intermediate directions.
(G) Direction is a major component of a map. Most
maps contain an arrow marked with the
' letter
'N' at the upper right hand corner.This arrow shows
the north direction and
therefore is called the
north line.Once the north direction is confirmed,the
other
direction-east,westands south can be easily
found.
EX-6 LEARNING IS FUN
ACROSS
6.Yellow
7.Green
8.Contour lines
9.Map
10.Verbal
DOWN
1.Cartographer
2.Cardinal
3.Keys
4.Topography
5.Legends
Class 7 – English Language
-
Ch- 3.
PHRASES
Exercise -A { Choose the correct option }
1) b . Phrase
2) a. Finite verb
3) c. adverb phrase
Ex - B underline the phrases and say whether they are adjective
phrase adverb phrase or noun phrase.
1) [at full speed ] - adverb phrase
2) [of no relevance] - adjective phrase
3) [in very lively manners] -adverb phrase
4) [of the crime] - noun phrase
5) [under lock and key] -adverb phrase
6) [by leaps and bounds] -adverb phrase
7) [to go home] - noun phrase
8) [with the kindly nature] -adjective phrase
9) [with undaunted zeal] - adjective phrase
10) [in a swift manner ] - adverb phrase
Ex - C fill in the blanks with appropriate adjective Phrase.
1) She lost the necklace made of gold.
2) He is a man of kind nature.
3) It is the flag of India.
4) We heard the song of Indian style.
5) The car of white colour was very expensive.
6) The road with trees is very lonely.
7) Nobody likes a person with bad temper.
8) He bought a shot of red colour.
9) Birds of same feathers flock together.
10) He lifted a load of heavy books.
Ex - D rewrite the following sentence using adverb phrase
1) They are going at this moment.
2) They have not long ago sold their property.
3) Anjali completed her assignment in a quick manner .
4) The dear ran at full speed .
5) Sumit is going at that place.
6) The judge asked question in a stern manner.
7) She spoke in a kind manner.
8) She nodded in a wise manner .
9) Is she coming at this place ?
10) He does his work in a careless manner.
[ Ch - 4 clauses ]
Ex -A choose the correct option
1) Clause
2) When
3) If clause
Ex -B underline the clauses and write their kinds in the following
sentence.
1(wherever you like) adverb clause
2(whose eyes were blue) adjective clause
3(that we will win a prize) noun clause
4(if you make a promise) adverb clause
5(what had happened) noun close
6(until you come) adverb clause
7(that she would probably fail in the exams) noun clause
8(where I grew up) adverb clause
9(if it broke down) if clause
10(if you drink this) if clause
11(that he met my brother in Delhi) noun clause
12(which you mention) adjective clause
Part -C. Fill in the blanks with suitable clauses
1) Adjective clause ÷
1) I know the place which you mentioned.
2) This is the book which is published by Ratna Sagar
3) He laughs best who laughs last.
4) I found the mobile which I have lost.
5) Mary had a little lamp whose eyes are blue.
2) Noun clause
1) He replied that he would come .
2) I do not know what he wants.
3) No one knows where she has gone.
4) We cannot understand why they are angry with us.
5) She expects that she will win the game.
3) Adverb clause.÷
1) You may sit wherever you like.
2) You will win if you work hard.
3) His father died because he was ill.
4)He trusted while it was hot.
5) I would have stopped if I had got the message.
Part -D. Complete the sentences using adverb clause as indicated.
1) One can concentrate better if there is calm atmosphere.
2) Please keep the house keys wherever you want.
3) The bus halted where I was standing.
4) The train arrived when I reached the station.
5) If you work hard you will be able to top this year's exam.
6) I will give you this book if you want to read.
7) Don't disturb when I am studying.
8) We eat in order to survive.
9) Reena has not seen her sister since one year.
10) If she will cheat ,she is will be dismissed.
[ Ch -5. The Noun Number ]
Ex -A choose the correct option
1) Singular
2) compound noun
Ex -B form the plurals of the following nouns.
1) Students
2) Calves
3) Brushes
4) Chiefs
5) Potatoes
6) Geese
7) Pianos
8) Oxen
Ex-C fill in the blanks with the correct form of the words given in the
bracket.
1) storeys
2) sons-in-law
3) stories
4) peasants
5) engineers
Ex-D choose the correct alternative from given the choices.
1) gentry
2) people
3) species
4) feet
5) poultry
6) vermin
Ex - E find out the error part and underline it.
1) The Indian team defeated( the Australia )by an inning.
2) They left (their luggage )at the railway station.
3)( My brother in law ) who lives in Mumbai have come to stay with us.
4) (Artificles of furniture )have been stolen from the house.
5) I lived (in a three - hundred year) old house in Mumbai.
[ Ch-6. The Noun case ]
Ex - A. choose the correct option.
1) Nominative case
2) Accusative case
3)Possessive. case
Ex -B find out the errors in each sentence and rewrite them
correctly.
1) The leg of this table is broken.
2) The roof of my house is leaking.
3) That shop is next to boys' hostel .
4) We should not challenge the laws of nature.
5) We have got a week's holiday .
6) This house is mine.
7) Is this your pen ?
8) Seven day's journey is a week's journey .
9) Every student is supposed to carry out their teacher's order .
Ex- C fill in the correct word from the brackets.
1) father-in-law
2) Mahesh
3) barber's
4) the leg of the table
5) St. Joseph
6) today's
7) the cover of the book
8) day's
[ Ch -15. The Preposition ]
Ex - A Multiple Choice Questions.
1) into
2) with
3) with
4) about
5) for
6) beside
7) in
Ex-B fill in the blanks with suitable prepositions.
1) with
2) on
3) by
4) into
5) of
6) in
7) with
8) in
9) on
10) on
Ex- C correct the following sentences
1) He goes to office on foot.
2) She is married to a rich man.
3) Mumbai is famous for its textiles.
4) Camles are peculiarly adapted to life in the desert.
5) His disability prevents him from driving.
6) He prefers coffee instead of tea.
7) These computers are cheap enough to be accessible for most people.
8) Beside the ungathered rice he lay.
9) He is at death's door.
10) There is still no cure for the common cold.
Ex-D complete the following sentences using prepositions from the box.
1) except.
2) in
3) of
4) instead of
5) for
Class 7 English Lit
Ch- Bravo Manju !
C) Answer these questions.
Q1) How were Manjula's hands different?
Ans) Manjula had claw like fingers that were malformed .She had just two
fingers on each hand .
Q2) What presents did she get for her birthday?
Ans=Manjula received a set of artists watercolours,a book "painting step
by step "and three watercolour brushes.
Q3) Why did Manjula decide to give up painting and take up cooking ?
Ans=Manjula decided to give painting as she overheard her father's
saying that she could not be an artist because of
her hands .He had suggested that she must take up
something useful like cooking and stitching .So,she
offered to help her mother.
Q4) How did her mother and brother encourage her to continue painting ?
Ans=The mother reminded Manjula of her potential and encouraged her to
fight.Amol her brother placed a newspaper cutting on
her table .The report was about Richard Belanger a
boy with artificial feet ,who played football .Amol
hoped that it would inspire Manjula to continue
painting.
Q5) Who kept the newspaper cutting on Manjula's table and why ?
Ans=Amol ,Manjula's brother kept the newspaper cutting on her table
hoping that the inspirational story of Richard
Belanger would encourage her to continue painting.
Q6) Why did Richard Belanger's life story inspire Manjula ?
Ans=Richard Belanger had artificial feet and yet he played football
against odds . His story was similar to Manjula
whose hands were different . His success restored
Manjula's faith in her abilities and encouraged her
to fight to learn painting .
D] Think and answer
Q1) Did Manjula handicapped affect her daily life ? Give examples to
support your answer.
Ans= No,Manjula's handicap did not affect her daily life .She could paint
,go to the market and helps her mother in the house
like any other person.
Q2) Do you think Manjula's family was well off ? Give examples to support
your answer .
Ans=Manjula's family was not well off.We get to know this because she
hesitated to ask her mother for painting materials
thinking that they would be very costly . Her father
too was not willing to spend money on expensive
watercolour sheets.
Class 7 – History – Chapter – 3
I.Tick the correct answer
1. D
2. C
3. b
4. D
5. C
II. Fill ups
1. Plunder
2. Prithviraj Chauhan
3. Alberuni,kitab-ul- hind
4.shahnama
5. Somnath Temple
III. Matching
4
1
2
3
IV. T/F
1. T
2. F
3. F
4. F
5. F
V. Q/Ans
1. Mention three most important invasions of Mahmud of ghazni.
Ans-
1. Mahmud defeated Jaipala, the Hindu ruler of Punjab in 1001 CE
2. Mahmud defeated a confederacy led by Anandapala in the year 1008-1009
CE
3. He also invaded and plundered the cities and temple towns such as
Multan. Alwar, Mathura, Nagarkot, Thaneshwar and
Somnath.
2. When and between whom were the battles of Tarain fought?
Ans- the first battle of Tarain was fought in CE1191 and the second
battle of Tarain was fought in CE1192, these battles
were fought between Muhammad Ghori and Prithviraj
Chauhan.
3. How were the raids of Mahmud Ghazni different from the raids of
Muhammad Ghori?
Ans- Mahmud of Ghazni:-
1.Mahmud Ghazni was interested in wealth rather than setting up an empire
in the Indian subcontinent.
2.Mahmud never suffered a defeat.
Muhammad Ghori:-
1.Interested in establishing an empire in India.
2. Faced defeat by Prithviraj Chauhan.
VI. Give reasons
Ans- a. Mahmud Ghazni was interested in wealth rather than setting up an
empire in the Indian subcontinent.
Ans- b. Rajput Chiefs were jealous of each other. The Rajputs had no
standing army of their own, and hence had to depend
on the feudal lords for contingents.
Class 7 History
I.Tick the correct answer.
1. c
2. c
3. c
4. b
5. b
II. Fill ups
1. Mecca,570
2. Allah
3. Idol
4. Caliphs
5. Harun- al- Rashid
III. Matching
3
4
5
1
2
IV. T/F
1. F
2. T
3. T
4. F
5. F
V. Q/Ans
1. Discuss the early life of Muhammad.
Ans- Prophet Muhammad, who propagated the religion was born in Mecca
about CE 570.Until mid-life, Prophet Muhammad lived
the life of a prosperous trader In CE610, Muhammad
had his spiritual experience and became a prophet.
He called himself the messenger of the supreme being
Allah.
2. Describe the teachings of Muhammad.
Ans- 1.A Muslim should not worship an idol. 2.He must not lend money on
interest. 3. He should lead a life of virtue and
benevolence. 4. All Muslims, must regard themselves
as brothers and equals.
3. What are the five main religious obligations of Islam?
Ans- Five Pillars of Islam
a) Shahada (Confession of Faith): "There is no God but Allah: Mohammad
is His Prophet.
b) Salat (Prayer): He must offerprayers fnamaaz) five times everyday and
on Fri- day afternoons in a mosque.
C Zakaat (Alms Giving) : He must give alms to the pooras an offering to
Allah and a religious act.
d) Sawm or Siyam (Fasting): Muslims must keep fast from dawn to dusk
during Ram- adan (Ramzan)
(e) Haj (Pilgrimage to Mecca) : Once in his ifetime, every Muslim must
travel to Mecca. This pilgrimage is called Haj.
4. Discuss the spread of Islamic civilization after the passing away of
prophet Muhammad.
Ans- Spread of Islamic Civilisation 1.The Prophet was succeeded by four
Khalifas - Abu Bakr, Umar, Usman and Ali.
2.The rule of the last Khalifa was ended by Umayyad dynasty who ruled
from Damascus.
3.The Umayyads were overthrown by Abbasids in CE 750.
5. Describe the main contribution of the umayyads and the abssids.
Ans- The Umayyads
The Umayyad dynasty ruled from 661 CE to 750-CE with their capital at
Damascus. They ruled over Spain and France in
Europe.
Abssids
Progress was made in areas such as, art, literature, science and trade.
The most famous Abbasid ruler was Harun al-Rashid.