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WorksheetsReflect and Review
Total questions: 31
Worksheet time: 16mins
An experiment is carried out by a group of students and their results are shown in the given figure.
The air present in the water formed bubbles.
Air inside the glass escaped out in the form of bubbles.
Air in the trough escaped as air bubbles.
Air in the surroundings formed air bubbles.
The layer of atmosphere where the jet plane fly is the
stratosphere.
Ionosphere.
Troposphere.
Lithosphere.
The pie chart shows the composition of air. What do x and y represent?
X-Nitrogen
Y- Carbon dioxide
X-Carbon dioxide
Y-Nitrogen
X-Nitrogen
Y- Inert gases
X-Oxygen
Y-Carbon dioxide
What is present all around us?
Water
Air
Soil
Sand
Air pressure is measured with an instrument called the
barometer.
Ammeter.
Hydrometer.
Manometer.
The amount of water vapor present in air Is called
Droplets.
Humidity
Precipitation.
Smoke.
Which process is responsible for the formation of water vapor?
Condensation
Evaporation
Sublimation
Sedimentation
Which of the following is the importance of the layer marked 'X' in the figure given below?
The layer 'X' provides living things with oxygen.
It protects the Earth from asteroids.
It gives out heat.
It is useful only to plants.
The figure shows a straw placed in a beaker
of water. The water level in the
straw rises when air is sucked out, this is because
Atmospheric pressure has increased.
Air pressure inside the straw is the same as the atmospheric pressure.
Air pressure inside the straw becomes lower than the atmospheric pressure.
Air
pressure inside the straw becomes higher than the atmospheric pressure.
Which of these will dissolve in water?
Sand
Topsoil
Rock
Baking soda
Which of these is/are examples of Evaporation .
1. water changing to water vapour from oceans and rivers.
2. water changing to water vapour from a glass kept in the open.
3. water vapour changing to water to produce rain
only 1
Only 1 and 2
Only 2
Only 1 ,2 and 3
What is a gentle wind called ?
Wind
Storm
Breeze
Gail
Dust particles present in the air form tiny droplets of water when______________.
heated
condensed
melted
Why do we usually not see the moon during the daytime?
Because thick clouds cover it.
Because of the bright sunlight
Because the moon is there only at night
Because the moon is on the other side of the earth.
Temperature of an area mostly depends upon ________
humidity
distance from the sea
rainfall
Jaya took a glass of water and added a
spoonful of sugar and then squeezed the juice of a lemon into it. She stirred
it well and then poured this mixture through a strainer. What will remain in the strainer?
Only water
Only lemon juice
Only lemon seeds
Lemon seeds and sugar
Jaya took a glass of water and added a
spoonful of sugar and then squeezed the juice of a lemon into it. She stirred
it well and then poured this mixture through a strainer. What will remain in the strainer?
Only water
Only lemon juice
Only lemon seeds
Lemon seeds and sugar
Anil poured equal amounts of water into four containers as shown in the figure and kept all of them out in the hot sun for an entire day. At the end of the day, he measured the amount of water left in each container. What was Anil testing for?
Whether evaporation depends on the volume of water taken
Whether evaporation depends on temperature
Whether evaporation depends on the material of the container
Whether evaporation depends on the exposed area of water
Houses with sloping roofs are more common in some places than in others. Sloping roofs will be MOST common in __________.
places with strong winds
places with weak winds.
places with high rainfall
places with no rainfall
We often find that air high up in the mountains is much less polluted than lower down in the plains. What could be the reason for this?
Trees in the mountains can take in all the pollution.
Air in the mountains is different from air lower down.
There is very little air high up in the mountains to be polluted.
There are less pollution-causing activities high up in the mountains.
Benjie has two different vessels, P and Q. Vessel P is filled with 2 litres of water and vessel Q with 1 litre of oil. Both the vessels are full, as shown in the picture.
If he empties the vessel Q and pours all the water that was there in vessel P into it, will the water overflow?
No, because both water and oil are liquids.
Yes, because water flows much easily compared to oil.
Yes, because vessel Q won't be able to hold that much water.
Cannot say for sure. It depends on the shape of the vessel Q.
Breeze and storm are types of wind. Which of them can damage buildings?
Breeze
Storm
both, breeze and storm
Wind cannot damage buildings.
Mahi sits near the window to study every morning. The shadow of the tree falls on the window only in the morning.
Which direction is the window most likely facing?
east
west
north or south
cannot say from the given information
Suhani observed that wet roads dried up due to heat. She kept a bucket full of water in the afternoon out in the Sun to study the effect of heat on the water. Around how long will it take for the water to completely dry off from the bucket?
1 hour
3 hours
half a day
several days
A person is standing in an open ground during the day. His shadow formed due to position of the Sun as shown below. What time of the day is it?
noon
evening
night
Which of the following will happen if volcanic eruption has taken place inside water?
Flood
Tsunami
Both can happen
Volcanic eruption can never take place inside water surface.
A ship carrying oil sinks in the ocean resulting in an oil spill. This will have a negative impact on
Marine animals
Aquatic plants
Both A and B
The air above the ocean
A student removes an ice cube tray from the freezer and places it on a table. The ice cubes are solid and cold. The student forgets to put the ice cube tray back into the freezer. The next day the ice cubes should be:
Liquid and warmer
Solid and warmer
Liquid and colder
Solid and colder
Which of the following is not true?
Millions of tiny droplet is cloud
Opposite of evaporation-condensation
Cloud formation near ground is fog
Water droplets frozen on their way down is snow
In which of the following conditions evaporation becomes faster?
A) On sunny days
A) When surface area is larger
A) On windy days
A) All of these
See the picture and identify it.
snow
hail
dew
frost
