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G4 Today 23

Total questions: 165

Worksheet time: 1hrs 26mins

Name
Class
Date
1.

Air is _________ than water.

a)

Heavier

b)

Lighter

2.

There is a covering of air all around the _____________.

a)

India

b)

Earth

3.

Air is a _________ of several of gases.

a)

Solution

b)

Mixture

4.

The large part of the air is covered by ___________.

a)

Nitrogen

b)

Oxygen

5.

_________ is present in small quantities in air.

a)

Nitrogen

b)

Carbon dioxide

6.

The _______ that takes place in factories, vehicles, kitchens etc. gives out smoke.

a)

freezing

b)

burning

7.

_________ from air is used for breathing and burning.

a)

Carbon dioxide

b)

Oxygen

8.

The covering of air around the earth is called ____________.

a)

water vapour

b)

atmosphere

9.

Air is present in places that appear to be empty.

a)

True

b)

False

10.

Plants use ______________ gas while preparing their food.

a)

Nitrogen

b)

Carbon dioxide

11.

The gas released during photosynthesis

a)

Carbon dioxide

b)

Nitrogen

c)

Oxygen

d)

Helium

12.

What happens to air pressure as you move upward into the atmosphere?

a)

increases

b)

decreases

c)

stays the same

13.

In what direction(s) does air exert pressure?

a)

everywhere

b)

in one direction

c)

downwards only

d)

upwards only

14.

Air mattresses, balloons and bubbles are all examples of which property of air?

a)

Warm air expands

b)

Air takes up space

c)

Air has weight

d)

Air is a mixture of gases

15.

If you pick up two cans of air, one full and one almost empty, the one that is full is heavier because...

a)

Warm air expands

b)

Air is a mixture of gases

c)

Air has weight

d)

Cool air contracts

16.

The gas that is converted into a usable form by bacteria present in soil

a)

Oxygen

b)

Helium

c)

Nitrogen

d)

Hydrogen

17.

Identify the process

a)

Coughing

b)

inhalation

c)

inhalation and Exhalation

d)

Exhalation only

18.

Hot air ___________ and cold air __________

a)

Sinks, Rises

b)

Rises, Sink

c)

is fun, is lazy

19.

The gas that is present in the highest amount in air

a)

Nitrogen

b)

Oxygen

c)

carbon dioxide

d)

Helium

20.

Air is

a)

Colourless and tasteless

b)

Colourless , odourless and tasteless

c)

Only tasteless

21.

Combustion requires two components :

a)

fuel and oxygen

b)

fuel only

c)

carbon dioxide

d)

all of the above

22.

Is this actually empty ???

a)

Yes , it is clearly visible that it is empty .

b)

No , it has air in it .

c)

It has water in it .

23.

Aerated drinks have this gas dissolved in it

a)

Carbon dioxide

b)

Oxygen

c)

Nitrogen

d)

All of the above

24.

Earthworms breathe through

a)

Skin

b)

Gills

c)

Lungs

d)

All of the above

25.

Moving air is called

a)

Storm

b)

Wind

c)

Hail

d)

None of the above

26.

Air in motion is called_________________

a)

wind

b)

nitrogen

c)

air pollution

d)

none

27.

Which statement is true?

a)

Air has weight

b)

Air takes space

c)

Air helps in burning

d)

All of the above

28.

Name the gas that is present in highest percentage in Air.

(a)  

29.

Wet hair get dry in Sun because___________

a)

water turns into steam and goes in the sun

b)

steam turns into water

c)

steam turns into ice

d)

water turns into steam and goes in the air

30.

Which of the statement is true?

a)

Warm air is lighter than cold air

b)

cold air is lighter than warm air

c)

both are of same density

d)

none

31.

We breathe in______________

a)

carbon dioxide

b)

ammonia

c)

argon

d)

oxygen

32.

Which statement is incorrect?

a)

carbon dioxide has more affinity for haemoglobin than oxygen

b)

sulphur dioxide causes breathing trouble.

c)

Acid rain is a result of air pollution

d)

Air Pollution is good for living beings

33.

Which of the following gas helps in burning?

a)

nitrogen

b)

oxygen

c)

carbon dioxide

d)

carbon monoxide

34.

Air is present in ________________

a)

atmosphere

b)

soil

c)

water of ponds, lakes and oceans

d)

everywhere

35.

Air is ___________________

a)

a pure substance

b)

a mixture

c)

an element

d)

anything, that depends on the place where it is found

36.

Envelope of air that surrounds the earth is known as______

a)

biosphere

b)

atmosphere

c)

environment

d)

ecosystem

37.

Air becomes thinner and thinner as we go higher and higher from the surface of earth.

a)

true

b)

false

38.

Wind does not help in the movement of which of the following?

a)

firki

b)

wind mill

c)

ceiling fan

d)

sailing yacht

39.

Mountaineers carry oxygen cylinders with them because

a)

there is no oxygen on high altitude

b)

there is deficiency of oxygen on mountains at high altitude

c)

oxygen is used for cooking

d)

oxygen keeps them warm at low temperature

40.

Which of component present in air indicates air pollution?

a)

0.03% carbon dioxide

b)

oxygen

c)

nitrogen

d)

sulphur dioxide , carbon monoxide and larger percentage of carbon dioxide

41.

When air moves from sea to land during day time, it is called ______________

a)

sea breeze

b)

land breeze

c)

breeze

d)

wind

42.

During night when air from land moves towards the sea, it is called________________

a)

sea breeze

b)

land breeze

c)

wind

d)

oxygen

43.

What is the layer of air around the Earth called?

a)

trophosphere

b)

atmosphere

c)

hemisphere

44.

The air is mainly made up of ........

a)

nitrogen

b)

oxygen

c)

carbon dioxide

45.

The force that pulls you back to Earth is called .......

a)

activity

b)

heaviness

c)

gravity

46.

Water that is floating in the air is called .......

a)

precipitation

b)

water

c)

water vapour

47.

In the top layer of air you find ........ (2)

a)

satellites

b)

areoplanes

c)

International Space Station

48.

Your brain can survive without oxygen for .......

a)

8 minutes

b)

3 minutes

c)

4 minutes

49.

If I climb Mount Everest I must take .........

a)

cell phone

b)

warm clothes

c)

oxygen

50.

Plants use what gas in photosynthesis?

a)

carbon dioxide

b)

oxygen

c)

helium

51.

What gas do animals use from the air?

a)

carbon dioxide

b)

oxygen

c)

helium

52.

What gas in the air is causing global warming?

a)

carbon dioxide

b)

oxygen

c)

helium

53.

A fire uses which gas to burn?

a)

carbon dioxide

b)

oxygen

c)

helium

54.

The layer of air does two things for us on earth ......

a)

keeps the warmth in at night

b)

makes rain

c)

protects us from meteorites

55.

What layer protects us from the sun's harmful rays?

a)

protection layer

b)

ozone layer

c)

atmospheric layer

56.

As we go higher up in the atmosphere the air gets .........

a)

heavier

b)

thinner

c)

colder

57.

What do we call harmful gases in the air?

a)

solution

b)

creation

c)

pollution

58.
Which gas in our atmosphere is most abundant?
a)
Argon
b)
Oxygen
c)
Nitrogen
d)
Carbon Dioxide
59.
What is the percentage of oxygen in Earth's atmosphere?
a)
1%
b)
21%
c)
78%
d)
90%
60.
In which layer of the atmosphere does weather occur?
a)
Mesosphere
b)
Thermosphere
c)
Stratosphere
d)
Troposphere
61.
Which layer protects the earth from meteors?
a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
62.
What does this tool measure?
a)
Wind speed
b)
Wind direction
c)
Air pressure
d)
Temperature
63.
What is the name of this tool?
a)
Barometer
b)
Hygrometer
c)
Rain Gauge
d)
Thermometer
64.
A rain gauge measures what?
a)
Air pressure
b)
Wind speed
wind speed
c)
Amount of rain fall
d)
Wind direction
65.
This weather instrument is a...
a)
anemometer
b)
barometer
c)
wind vane
d)
thermometer
66.
This weather instrument is an...
a)
wind vane
b)
anemometer
c)
barometer
d)
thermometer
67.
Which tool measures wind speed?
a)
Anemometer
b)
Hygrometer
c)
Barometer
d)
Wind Vane
68.
Temperature is measured in...
a)
degrees
b)
inches
c)
centimeters
d)
feet
69.
A high pressure system means we might have this weather.
a)
Snow blizzard
b)
Sunny and dry
c)
Rain storm
d)
Tornado
70.
A low pressure system means we might have this weather.
a)
Sunny 
b)
A clear sky
c)
Dry day
d)
Stormy or wet
71.
What is the name the name of this weather tool? 
a)
Rain Gauge
b)
Telescope
c)
Wind Vane
d)
Anemometer
72.
What is the name of a person who forescast weather?
a)
weather man
b)
geologist
c)
meteorlogist
d)
scientist
73.
What happens to air pressure as it moves upward into the atmosphere?
a)
increases
b)
decreases
c)
stays the same
74.
Air is mostly made up of what two gases?
a)
oxygen and nitrogen
b)
oxygen and hydrogen
c)
hydrogen and helium
d)
nitrogen and hydrogen
75.
Does air have a weight?
a)
Yes, it does
b)
No, it doesn`t
76.
Can we see air?
a)
Yes, we can
b)
No we cann`t
77.
As you go up through the atmosphere, the density of the air __________________. 
a)
decreases
b)
increases
c)
stays the same
78.

What MOST affects the temperature of an area?

a)

latitude

b)

longitude

c)

precipitataion

d)

altitude

79.

Wind speed is affected the MOST by:

a)

cloud cover

b)

direction of wind

c)

air pressure

d)

amount of humidity in the air

80.

Why does the weather in the US constantly change?

a)

air movement from the Pacific Ocean

b)

moving of high and low pressure masses

c)

the distance between the North and South poles

d)

the distance between the equator and the US

81.

What has the LEAST effect on local weather?

a)

wind speeds

b)

landforms

c)

precipitation

d)

temperature

82.

What is NOT TRUE about wind speed and direction?

a)

Winds are caused by uneven heating of the Earth.

b)

Winds are caused by differences in air pressure.

c)

Winds are caused by changes in humidity.

d)

Winds are caused by changes in latitude.

83.

What kind of weather MOST LIKELY results from a low pressure system?

a)

sunny and clear with no wind

b)

mostly sunny, but with a little precipitation

c)

cloudy skies, windy, with moderate to heavy precipitation

d)

partly cloudy with a little precipitation

84.

Why does wind occur?

a)

It is produced by precipitation

b)

It is always caused by low temperatures.

c)

It is caused by differences in air temperatures.

d)

It is produced by differences in cloud cover.

85.

If a high pressure system replaced a low system, what would probably happen?

a)

The area would become more stormy and rainy.

b)

The area would become more humid and warmer.

c)

The area would become cooler with less humidity.

d)

The area would become warmer with strong winds.

86.

If air pressure drops quickly, what will MOST LIKELY happen?

a)

clear skies and dry weather

b)

cloudy skies and possible storms

c)

clear skies and wind

d)

cloudy skies and dry weather

87.

What two factors are used to measure wind?

a)

speed and temperature

b)

direction and speed

c)

temperature and speed

d)

direction and temperature

88.

What is used to measure air pressure?

a)

An annemomter

b)

A barometer

c)

A psychrometer

d)

A thermometer

89.

What kinds of clouds are MOST OFTEN visible in fair weather?

a)

altostratus

b)

cirrus

c)

stratus

d)

cumulonimbus

90.

The gas released during photosynthesis

a)

Carbon dioxide

b)

Nitrogen

c)

Oxygen

d)

Helium

91.

What happens to air pressure as you move upward into the atmosphere?

a)

increases

b)

decreases

c)

stays the same

92.

In what direction(s) does air exert pressure?

a)

everywhere

b)

in one direction

c)

downwards only

d)

upwards only

93.

Air mattresses, balloons and bubbles are all examples of which property of air?

a)

Warm air expands

b)

Air takes up space

c)

Air has weight

d)

Air is a mixture of gases

94.

If you pick up two cans of air, one full and one almost empty, the one that is full is heavier because...

a)

Warm air expands

b)

Air is a mixture of gases

c)

Air has weight

d)

Cool air contracts

95.

The gas that is converted into a usable form by bacteria present in soil

a)

Oxygen

b)

Helium

c)

Nitrogen

d)

Hydrogen

96.

Identify the process

a)

Coughing

b)

inhalation

c)

inhalation and Exhalation

d)

Exhalation only

97.

Hot air ___________ and cold air __________

a)

Sinks, Rises

b)

Rises, Sink

c)

is fun, is lazy

98.

The gas that is present in the highest amount in air

a)

Nitrogen

b)

Oxygen

c)

carbon dioxide

d)

Helium

99.

Air is

a)

Colourless and tasteless

b)

Colourless , odourless and tasteless

c)

Only tasteless

100.

Combustion requires two components :

a)

fuel and oxygen

b)

fuel only

c)

carbon dioxide

d)

all of the above

101.

Is this actually empty ???

a)

Yes , it is clearly visible that it is empty .

b)

No , it has air in it .

c)

It has water in it .

102.

Aerated drinks have this gas dissolved in it

a)

Carbon dioxide

b)

Oxygen

c)

Nitrogen

d)

All of the above

103.

Earthworms breathe through

a)

Skin

b)

Gills

c)

Lungs

d)

All of the above

104.

Moving air is called

a)

Storm

b)

Wind

c)

Hail

d)

None of the above

105.

A gentle wind is called a ___________.

a)

breeze

b)

gale

c)

storm

106.

Matter is anything that ___________ and ______________.

a)

has mass

b)

occupies space

c)

Both of the above

107.

Insects breathe with the help of ___________.

a)

lungs

b)

gills

c)

spiracles

108.

Plants require ___________ from the air for photosynthesis.

a)

oxygen

b)

carbon dioxide

c)

nitrogen

109.

This image indicates _________________

a)

a polluted city

b)

unpolluted city

110.

Tiny living organisms that cause diseases ____________.

a)

ants

b)

earthworms

c)

germs

111.

Air is used to ____________________

a)
b)
c)
d)

All the above

112.

Breathing in of air causes the chest cavity to ____________.

a)

contract

b)

expand

113.

Property of air exhibited in this figure is ________________

a)

Air can change shape of things

b)

Air is not required for burning

c)

Air has no colour

114.

The property exhibited in this figure is ________________.

a)

Air has weight

b)

Air is not needed for burning

c)

Air is needed for burning

115.

Air contains _______________.

a)

water vapour

b)

dust

c)

germs

d)

smoke

e)

All of the above

116.

The % of oxygen in the air is _____________.

a)

78%

b)

21%

c)

1%

117.

Which gas is the most common in our air?

a)

Nitrogen

b)

Hydrogen

c)

Helium

d)

Oxygen

118.

Do bubbles use air?

a)

yes

b)

no

119.

The large part of the air is covered by ___________.

a)

Nitrogen

b)

Oxygen

120.

_________ is present in small quantities in air.

a)

Nitrogen

b)

Carbon dioxide

121.

Air is present in places that appear to be empty.

a)

True

b)

False

122.

Can we see and touch air?

a)

Yes

b)

NO

123.

Which of the following object does not need air to live?

a)
b)
c)
124.

Which of these objects need air to work?

a)
b)
c)
125.

Insects breath through (a)  

126.

Animals that live in water breathe through

(a)  

127.

Taking in air is called ____________. And taking out air is called __________.

a)

a) inalatioon b) exlaion

b)

a) inhalation b) exlation

c)

a) inhalation b) exhalation

128.

Anything that occupies space is called (a)  

129.

_________ is present in small quantities in air.

a)

Nitrogen

b)

Carbon dioxide

130.

Air is present in places that appear to be empty.

a)

True

b)

False

131.

What is wind?

a)

Moving air

b)

stopped air

132.

Strong and fast moving wind is called

a)

Storm

b)

wind

c)

rain

133.

Which property of Air shown in the image?

a)

Air has weight

b)

Air is needed for burning

134.

Which property of Air is observed when air is filled in tyres?

a)

Air is needed for burning

b)

Air occupies space

135.

Which property of air is represented in the picture.

a)

Air occupies space

b)

Air has weight

136.

Observe the picture carefully. What will happen if a glass is put over a burning candle?

a)

The candle keeps burning.

b)

The candle goes off.

137.

Check THREE types of precipitation?

a)

rain

b)

snow

c)

rainbow

d)

hail

138.

Check the TWO gases that are most abundant in Earth's atmosphere.

a)

carbon dioxide

b)

oxygen

c)

nitrogen

d)

helium

139.

Where do hurricanes form?

a)

over a cold body of water

b)

over cold land

c)

over a warm body of water

d)

over warm land

140.

Which weather tool measures temperature?

a)

thermometer

b)

barometer

c)

wind vane or weather vane

d)

rain guage

141.

What is the process called when water changes from a liquid to a gas?

a)

precipitation

b)

condensation

c)

evaporation

d)

run off

142.

Water vapor molecules squeeze together in the atmosphere, they form (a)  

143.

At what temperature will water freeze?

a)

32 degrees Fahrenheit

b)

212 degrees Fahrenheit

c)

0 degrees Celsius

d)

100 degrees Celsius

144.

When gravity pulls moisture back to the Earth’s surface from the atmosphere it is called ______

a)

evaporation

b)

condensation

c)

precipitation

d)

run off

145.

In the event of a hurricane, people who live near the COAST should:

a)

seek safety in their basement

b)

evacuate the area

c)

watch the storm from a window

146.

What kind of weather will a WARM FRONT bring to an area?

a)

stormy weather

b)

clear skies and warmer temperatures

c)

cloudy skies and colder temperatures

147.

Warm air masses are always forming at this location.

a)

North Pole

b)

South Pole

c)

Equator

148.

The Sun’s energy directly heats the _______ and _______ on the Earth’s surface.

a)

air and water

b)

land and water

c)

clouds and atmosphere

149.

When water evaporates, the water changes into a _____ .

a)

solid

b)

liquid

c)

gas

150.

Which of Earth's "spheres" include oceans, lakes, glaciers, water vapor, and groundwater?

a)

lithosphere

b)

atmosphere

c)

hydrosphere

d)

biosphere

151.

What causes Earth's seasons?

a)

Earth's rotation

b)

Earth's tilt and revolution

c)

Earth's moon phases

152.

What are the 3 states of water?

a)

rain, snow, hail

b)

pond, ocean, river

c)

solid, liquid, gas

153.

The amount of water vapor or moisture in the air is known as ____

a)

humidity

b)

front

c)

precipitation

154.

The daily condition of the air...includes wind speed and direction, temperature, air pressure, and humidity

a)

climate

b)

weather

c)

wind belts

155.

All of Earth's water (glaciers, lakes, oceans, water vapor)

a)

lithosphere

b)

geosphere

c)

hydrosphere

d)

atmosphere

156.

The layer of gases surrounding the Earth are called the Earth's ___.

a)

weather

b)

atmosphere

c)

oxygen

d)

temperature

157.

The layer of the atmosphere closest to Earth where weather takes place...

a)

Stratosphere

b)

Troposphere

c)

Outersphere

d)

Hydrosphere

158.

The layer of the atmosphere in the middle where meteors are...

a)

Mesosphere

b)

Middlesphere

c)

Spacesphere

d)

Stratosphere

159.

The layer of the atmosphere that is the HOTTEST!

a)

Heatsphere

b)

Troposphere

c)

Thermosphere

d)

Atmosphere

160.

Which layer of the atmosphere has the OZONE layer?

a)

Stratosphere

b)

Exosphere

c)

Thermosphere

d)

Innersphere

161.

What makes up 78% of the atmosphere?

a)

Oxygen

b)

Space junk

c)

Nitrogen

d)

Helium

162.

What makes up 21% of the atmosphere?

a)

Water vapor

b)

Nitrogen

c)

Oxygen

d)

Clouds

163.

What makes up 1% of the atmosphere?

a)

Water vapor and other elements

b)

People

c)

Oxygen

d)

Helium

164.

If we add up all the parts of the atmosphere, what should it equal?

a)

0%

b)

25%

c)

50%

d)

100%

165.

What would happen if one part of the atmosphere was missing?

a)

Air would move.

b)

Plants, animals and people would not survive.

c)

There would be no gravity.

d)

It would always rain.

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