Name______Roll No.____ Div.______

CHRIST SCHOOL, RAJKOT
SA-1EXAMINATION
Grade: 3 Date:3-10-2017
TIME:2.30Hrs. SUBJECT:SCIENCE MARKS: 50

I. Write the correct answer: [5]

(1)Our eyes help us to

a)See things

b)Feel things

c)Touch things

d)Taste things

(2)Which of the following is not found in air?

a) Oxygen

b)Nitrogen

c)Calcium

d)Carbon di oxide

(3)The tongue is a flexible

a)Muscle

b)Bone

c)Skin

d)Hair

(4)When air moves, we call it:

a)Drizzle.

b)Wind.

c)Storm.

d)Pollution.

(5) Toilets are cleaned with:

a) Glucose

b) Glycerin

c) Phenyl

d) Milk

(6) We should clean kitchen:

a) Weekly

b) Never

c) Daily

d) Every hour

(7) Personal hygiene is incomplete without our ______and surroundings being clean

a)belongings

b)buildings

c)bricks

d)balloons

(8) When we eat more food,we become:

a)Small

b) Tall

c)Fat

d)Thin

(9) Good health is a ______treasure.

a)priceless

b)useless

c)tasteless

d)less

(10) Which of the following is not an air pollutant?

a)Dust

b)Water vapour

c)Germs

d)Garbage

II Fill in the blanks with the option given in brackets: [5]

[Index,plant, deaf, finger, potholes, germs, netting, moving, molars,muscle, smell, incisors, broom]

(1) Teeth are of two types, i.e ______and ______.

(2) Nose is the sense organ of ______.

(3)Dirty hands and long nails carry ______.

(4)We should not read in a ______car.

(5) We should not put ______inside our nose.

(6)If our eardrums gets damaged, we may become______.

(7)We should sweep the floor with a ______.

(8)Roads should have no ______.

(9)We should ______as many trees as we can.

(10)The outer doors and windows should have______.

III Write ‘True’ if the statement is true and ‘False’ if the statement is false: [5]

(1)Our ears help us only to hear.

(2)Our tongue helps in moving chewed food towards the throat.

(3)We can see air around us.

(4)Living things need air to breathe.

(5)Pollution means air has turned impure.

(6)Teeth should be brushed only at night.

(7)Our eyes are delicate but not valuable.

(8)Vitamins A and C are found in yellow and citrus fruits.

(9)We should use open dustbins.

(10)We should plant trees in our neighbourhood.

IV Match the following: [3]

(1)Body Weak teeth

(2)Filtration Mosquitoes

(3)Sweets Running and Walking

(4)Belongings Water treatmen

(5)Netting Wonderful machine

(6)Feet TV and books

V Fill in the blanks: [2]

(1)The fouling of air / water due to human activity is called the air/ water ______.

(2)We can feel the ______of air.

(3)The changing of water into vapour form is called ______.

(4)The changing of ______into water droplets is called condensation.

VIAnswer the following: [Write any 10 questions] [20]

(1)Besides hearing, what other function is performed by your ears?

(2)Which parts of your body carry its weight?

(3)How do your teeth help you in the digestion of food?

(4)Why do we need water?

(5)What is air made up of?

(6)What is water cycle?

(7)How can we check air pollution?

(8)Mention some signs of good health?

(9)How do rest and sleep help us?

(10)Why should we wash our hands properly before and after every meal?

(11)How should you wash your toilets?

(12)How should your drains be connected?

(13)Why we cannot see air?

(14)Why should your windows and doors have wire netting?

(15)What happens if your roads have potholes?

VII Write the names of the following: [3]

Animals / Birds / Insects

VIII Write the use of the following animals: [2]

Animals / Use
Ox
Cow
Horse
Dog

IX Write the answer: [2]

(1)When you come to school, on which side of yours is the sun?

(2)When you go home, on which side of yours is the sun?

(3)When does your shadow look short?

(4)When does your shadow look long?

X Fill in the blanks: [3]

(1)My name is ______.

(2)I eat at ______o’ clock in the morning.

(3)______makes us sing prayer in the school.

(4)The sun is on the ______side when I go to school.

(5)My shadow is on ______side when the sun is on my left side.

(6)The sun is on ______side when my shadow is on left side.