4th Grade > Science
WATER MCQs
Total Questions : 34
| Page 1 of 4 pages
Answer: Option A. -> Sink
:
A
The above shown object is made up of steel. Itis more dense than water. Thus, the object will sink if dropped in water.
:
A
The above shown object is made up of steel. Itis more dense than water. Thus, the object will sink if dropped in water.
Answer: Option B. -> Solid
:
B
Water in solid state is known as Ice and could be obtained by cooling downwater below the freezing point.
:
B
Water in solid state is known as Ice and could be obtained by cooling downwater below the freezing point.
Answer: Option C. -> Grit chamber
:
C
A grit chamber adjusts the speed at which sewage flows such that the heavier paticles like stones, sand, etc. followed by smaller particles settle down to the bottom of the chamber.
:
C
A grit chamber adjusts the speed at which sewage flows such that the heavier paticles like stones, sand, etc. followed by smaller particles settle down to the bottom of the chamber.
Answer: Option A. -> Glacier
:
A
A glacier is a persistent body of dense ice, found on mountains.It forms where the accumulation of snow exceeds its melting and evaporationover many years, often centuries.
:
A
A glacier is a persistent body of dense ice, found on mountains.It forms where the accumulation of snow exceeds its melting and evaporationover many years, often centuries.
Answer: Option B. -> condenses
:
B
Clouds formwhen the invisible water vapour in the air condenses into visible water droplets. Thus water vapour condenses and come together to form clouds.
:
B
Clouds formwhen the invisible water vapour in the air condenses into visible water droplets. Thus water vapour condenses and come together to form clouds.
Answer: Option A. -> Rivers
:
A
Oceans and Seas occupy 97% of the Earth's water, which is mostly Saltwater.
Saltwater lakes too contain salt water as the name depicts.
River takes water from glaciers and rains which are sources of freshwater.
:
A
Oceans and Seas occupy 97% of the Earth's water, which is mostly Saltwater.
Saltwater lakes too contain salt water as the name depicts.
River takes water from glaciers and rains which are sources of freshwater.
Answer: Option B. -> absorb heat
:
B
Water moleucles absorb heatand start vibrating faster, this increases thedistance betweenmolecules andliquid molecules change into gaseous state (water vapours).
:
B
Water moleucles absorb heatand start vibrating faster, this increases thedistance betweenmolecules andliquid molecules change into gaseous state (water vapours).
Answer: Option B. -> precipitation
:
B
Condensed water droplets combine to form clouds.Once the cloudgets heavy, they fall on the surface of the earth as rain, snow or hailstones. This process is known as precipitation.
:
B
Condensed water droplets combine to form clouds.Once the cloudgets heavy, they fall on the surface of the earth as rain, snow or hailstones. This process is known as precipitation.
Answer: Option A. -> less than
:
A
Density is defined as mass per unit volume. Density of plastic is less than that of water, hence empty plastic bottle floats over water surface.
:
A
Density is defined as mass per unit volume. Density of plastic is less than that of water, hence empty plastic bottle floats over water surface.
Answer: Option B. -> chlorination
:
B
Chlorines gas is passed through water during treatment to kill germs and make it safe for drinking and other purposes. This process is known as chlorination.
:
B
Chlorines gas is passed through water during treatment to kill germs and make it safe for drinking and other purposes. This process is known as chlorination.
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