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HALF YEARLY EXAMINATION, 201HALF YEARLY EXAMINATION, 201HALF YEARLY EXAMINATION, 201HALF YEARLY EXAMINATION, 2018888----19191919

ENVIRONMENTAL STUDIES Time : 3 hrs. Class – V M.M. : 80

Date – 19.09.2018 (Wednesday)

Name of the student ____________________________________________Section _____

General Instructions :

• Read the questions carefully.

• All questions are compulsory.

• Draw the given diagram neatly. Label and colour it.

Q.1 Tick the right answer. (1×5=5)

i) The blood vessels that carry blood from the heart are –

a) veins b) arteries c) bronchi

ii) Calcium and Iron are -

a) proteins b) minerals c) carbohydrates

iii) Sugarcane plant is -

a) annual b) biennial c) perennial

iv) Population means -

a) making something dirty b) the number of people c) too many people

v) Which is the cleanest fuel -

a) petrol b) diesel c) CNG

Q.2 Fill in the blanks. (1×6=6)

i) Plants are called _______ because they make food.

ii) _______ produced by the nose, helps to filter dust.

iii) The lack of Iron in the body causes _______.

iv) _______ lay eggs in rotting garbage and faeces.

v) Walls built to stop sea water from rushing into land are called _______.

vi) When a person loses a lot of water, he/she suffers from _______.

Q.3 Name one word for each of the sentence. (1×5=5)

i) Animals, which eat the flesh of other animals.

ii) Bushy plants with woody stems.

iii) The help that doctors and nurses give to cure a patient.

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iv) A silvery substance that is filled in the bulb of a thermometer.

v) A place in a hospital where operations are performed.

Q.4 Write ‘True’ or ‘False’. (1×5=5)

i) The brain and spinal cord send messages through nerves.

ii) The skin and eyes of a person suffering from jaundice turn yellow.

iii) Decomposers return matter to the soil.

iv) Honking uselessly causes air pollution.

v) The deficiency of different nutrients leads to different diseases.

Q.5 Match the following. (1×5=5)

A B

i) Dam a) soil, water, air

ii) A climber b) a place to test sputum, stool, blood, urine etc.

iii) Hinge joint c) a barrier builds across a river

iv) Abiotic component d) knee, ankle, elbow

v) laboratory e) gourd

Q.6 Differentiate between the following. (Any two) (2x2=4)

i) Voluntary muscles and Involuntary muscles

ii) Communicable diseases and non-communicable diseases.

iii) Tap root and fibrous roots

Q.7 Define the following terms. (Any five) (1x5=5)

i) Seismograph ii) Cotyledons iii) Excretion

iv) Extinct animals v) surgeon vi) spinal cord

Q.8 Write short answer for any ten questions. (1×10=10)

i) Name the organs of the nervous system.

ii) Which bone of the skull can move?

iii) What do the kidneys do?

iv) What does nutrients mean?

v) How can we stop mosquitoes from breeding?

vi) What are decomposers?

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vii) Why should we use unleaded fuel?

viii) What is a drought?

ix) What is a blood bank?

x) What should you do to avoid getting tetanus?

xi) What is the main function of flowers?

xii) Why is it bad to use plastic?

Q.9 Write short notes on any two of the following : (3×2=6)

i) Noise pollution

ii) Mobile Health Van

iii) Environment balance by decomposers

Q.10 Write the answers in 3-4 lines. (Any five) (3×5=15)

i) Write about three ways of reducing air pollution caused by vehicles.

ii) Why is the cutting down of forests harmful?

iii) How do the leaves ‘cook’ for a plant?

iv) What does the stems of a plant do?

v) Write four lines about a primary health centre.

vi) Who can donate blood? Which people are not allowed to donate blood?

vii) How do earthquakes occur?

viii) How do flies spread diseases?

Q.11 Read the paragraph and answer the following questions. (4)

It was a hot summer. Amit was out of the home for some urgent work. He spent

a lot of time under the sun. He felt thirsty. He suffered from headache.

Suddenly he felt giddy and got fainted. His friend Vishal made him lie in a cool

room. He sponged him and applied an ice pack. He also prepared fresh ORS

and gave him as his body got dehydrated. After a few hours Amit felt better.

i) What does ORS stand for?

ii) What was Amit suffering from?

iii) What did you learn from this passage?

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Q.12 i) Draw a neat and well labelled diagram of the Earth showing its

different layers. (3)

ii) Label the different stages of life cycle of the given insect. (2)

iii) Identify the given pictures and write their names. (1x5=5)

(Clue : An organ system that helps to

filter blood)

(Clue : It works like a spring)

(Clue : Bushy plant with

woody system)

(Clue : A kind of joint)

(Clue : A kind of natural

calamity)