Std 6 Biology First Semester 2020

 

Enfant India International School

Class 6             Sub Biology      Marks 40

  

Instruction : This question paper has two sections .section A and section B each of 2 Marks.

Section A (20 marks)

Attempt all questions

Question 1.

a.    Multiple choice questions                                                                                   5×1

i.              The leaves are attached to the stem at

(a)  Petiole (b) Node (c) Spine (d) Internode

ii.            The arrangement of veins in the lamina is called

(a)  Venation (b) Transpiration (c) Pollination (d) Fixation

iii.           Cell was discovered by

(a)  Robert Brown (b) Robert Hooke (c) Leeuwenhoek (d) Darwin

iv.           Cell wall is made up of

(a)  Lipid and Protein (b) Lipid only (c) Cellulose (d) Starch

v.            The smallest cell of human body is

(a)  Nerve cell (b) Red blood cells (c) Muscle cell (d) white blood cells   

b.    Fill in the blanks                                                                                                  5×1

i.              Bile is stored in.............

ii.            Seeds develop from.................

iii.           Apple is an example of .................fruit.

iv.           Organism formed of one cell only are called .............organism.

v.            Digestion of starch starts from.............           

c.    Give one word for the followings                                                                       5×1

i.              Flowers having both male and female reproductive parts.

ii.            Single unit of male reproductive whorl of flower.

iii.           The swollen tip of the pedicel of flower.

iv.           The mature ovule that contains the embryo .

v.            A ripened ovary .         

d.    State the followings are true or false                                                                5×1

i.              Saliva changes starch into sugar.

ii.            Bile is produced by gall bladder.

iii.           Cell wall is found in animal cells only.

iv.           Rose leaf is simple leaf.

v.            Mango leaves have parallel venation.

 

 

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Std 7 Geography First Semester 2020

Enfant India International School

Class 7^th               Sub Geography            Mark. 40

Section (A)                              20

Question.1 Fill in the blanks.

(a) Mountains, hills, rivers, etc are......... features shown on a map.

(b) Roads, rail, tracks, walks, etc. are........ features on a map.

(c) contour lines on a map Jain points of equal......on the surface or the surface or the earth above or below a reference point.

(d) The colour..........is used to show Barren land on Topographical sheets.

(e) The colour yellow is used to show...........on Topographical sheets.

 

(Question 2. Choose the correct answer

 (1) This is a ratio of distance between two places on a map.

(a) scale (b) map (c) Globe (d)Atlas

(2) The scale is states in words.

(a) verbal (b) statement (c)both of these (d) None of these

(3) The straight distance between two points can be measured this.

a) twine (b) ruler (c)compass (d) stick

(4) In this fraction, the numerator is always.

a) Representative fraction (b) Refractive fraction (c) Reduction fraction

(Section B).                                       (20)

(Question.1)  Write True or false.

(1) Ozone is found in the troposphere.

(2) The ozone layer is harmful for humans and animals

(3)CFC and BFC protect the ozone layer.

(4) Aeroplane flying in the sky cause global warming

(5) Forest fires do not cause global warming.

 

 (Question.2) Answer the following questions briefly

 

(1) What is meant by the scale of a map.

(2) Which three ways are used to represent the scale of a map.

(3) Convert the statement 1CM=1000km in to R.F. scale

(4) What method would you use to measure the length of a river.

 

 

 

 

 

 

  

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Std 8 Physics First Semester 2020

 

                      Enfant India International School

                                           Class -8^th Sub.- Physics         M.M.-40

                                                   Section -A

1.Fill in the blanks .                     (1×5=5)

(a) The SI unit of work is ________

(b) The rate of doing work is called ____

(c) Atmospheric pressure is maximum at _________

(d) An iceberg ______ on water.

(5) An iron needle ______ in water but a ship _______ on water.

2. Give one word .                        (1×5=5)

(a) The size of naphthalene balls decreases when left open for some time .

(b) Hot tea cools faster in a saucer than in a cup.

(c) Principle which governs the floating/sinking of a solid in a liquid .

(d) Ratio of mass of an object and the volume of that object.

(e) Normal force per unit surface area .

3. Define these terms .                (1×5=5)

(a) Work       (b) A Joule   (c) Power

(d) Mechanical energy   (e) A watt

4. Differentiate between the following.          (1×5=5)

(a)  Power and work

(b)  Energy and power

(c)  Thrust and pressure

(d)  Floating and sinking

(e)  Solids and liquids

 

                    Section -B

5. Answer these questions.             (2×10=20)

(a)  Arrange three states of matter in ascending order of intermolecular space.

(b)  Give the value of freezing point of water and boiling point of water.

(c)  Define density and give its unit .

(d)  State the principle of flotation.

(e)  What is submarine? What is it’s working principle?

(f)   State any two effects of a force.

(g)  What is the SI unit of pressure ?

(h)  Why are heavy trawlers fitted with a large number of wheels ?

(i)    Explain that a liquid seeks its own level.

(j)    How is energy related to work ?

 

 

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Std 7 Chemistry First Semester 2020

 

Enfant India International School

Semester I  2020-21

Std- VII                             Subject- Chemistry                                    M:M-40

                                                           Section I ( 20 marks )

Q1-Write true or false against each statement:                                                    5m

i.                    Digestion of food is a physical change.

ii.                  A compound is a pure substance.

iii.                Carbon dioxide is an element.

iv.                 The symbol of Carbon is C.

v.                   Nucleus is negatively charged.

  Q2-Fill in the blanks with the suitable words-                                                     5m

i-             The substance taking part in chemical reaction is called……………

ii-            Water breaks down into its constituents hydrogen and…………….

iii-           A chloride ion has one unit…………… charge.

iv-           Sugar solution is a………..…. mixture.

v-            Photosynthesis is a………..…. change.

Q3-Choose the correct option-                                                                                5m

i-             Elements present in carbonate ion are-

a.    Carbon and oxygen                 b. Carbon and hydrogen

ii-            The number of valence electrons in magnesium atom is-

a.    2                                                 b. 1

iii-           The molecular formula of water is-

a.    H₂O                                            b. N₂O

iv-           The symbol of sodium is-

a.    N                                                b. Na

v-            An example of chemical change is-

a.    Cutting of wood                      b. Burning of wood

Q4- Give one word for the following-                                                                     5m

i.                    The process in which solid directly changes into a gas.___________

ii.                  Unreactive gases which are present in traces in air._____________

iii.                Small dense and positively charged central core of an atom.______

iv.                 The substance formed in the chemical reaction._____________

v.                   These are written on the left-hand side of the reaction.__________

                                        Section II ( 20 marks )

Q5- Define any three of the following terms-                                                  2X3= 6m

i.                    Atomic number

ii.                  Radical

iii.                Electronic configuration

iv.                 Atom

v.                   Mass number

Q6- Differentiate between the following-                                                         2X2= 4m

i.                    Reactants and products

ii.                  Compound and mixtures

Q7- Give reasons for the following-                                                                 2X2= 4m

i-             Why do we need to classify elements.

ii-            Why elements are called pure substances.

Q8- Answer the following questions-                                                              2X3= 6m

i-             What is a chemical reaction?

ii-            Give the symbols of the following-

A.   Sulphur

B.   Phosphorus

C.   Calcium

D.   Chlorine

iii-           Give the valencies of the following radicals-

A.   Carbonate

B.   Sulphate

 

 

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Std 6 Geography First Semester 2020

 

Enfant India International School

                       Class 6             Sub Geography              Marks 40

 

Section (A)

Attempt all questions. Every questions carry equal marks                                       10

Question no. 1

(a) What is the map?

(b) What is the Atlas?

(c) What is the globe?

(d) What is the plan?

(e) What is the fold?

 

Question no. 2

Choose the correct answer                                                                                                 10

(1) Which of these in shown by a the matic map ?

(a) mountain (b) rivers (c) climated (d) state capitals.

(2) These maps are useful to surveyor and civil engineerings engaged in buildings roads, bridges canals and other structures

(a) physical (b) politicial (c) topography (d) the matic

(3)this is the true model of the earth

 (a) sketch (b)map (c) globe (d) plan

(4) This is the rough drawing showing the relative location of a few features of an area.

(a). sketch (b) plan (c) map (d) globe

Section (B)

Attempt all questions. Every questions carry equal marks                                           10

Question no. 1

(a) What is the cardinal direction?

(b) What is the scale?

(c) What is the conventional sings and symbols?

(d) What is grid system?

 

Question no. 2                                                                                                                        10

Choose the correct answer.

(a) This is not one of the fine basic elements of a map .

(1) a title (2) a north line (3) conventional symbols (4) a twine

(b) This is one of the intermediate direction.

(1) north (2) south (3) north east (4) east

(c) Places lying halfway between south and south west will have a

(1) south direction (2) west direction (3) south south direction (4) West south west direction

(d) This is the ratio of the distance between two places in a map to the actual distance between the same two places  the ground.

(1) scale (2) plan (3) symbol (4) sketch

(e) The numerator of a representative in always.

(1) 1  (2) 2 (3) 0 (4) 100

 

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