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Science [1 Marks Each] Blanks

Changes Around Us · Uttarakhand Board (UBSE) STD 6 (Uttarakhand - English Medium). 20 questions.

Questions

[1 Marks Each] Blanks

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20 questions · timed · auto-graded

Question 11 Mark
Water vapour changes into $.........$ when it is cooled.
Answer
Water vapour changes into Liquid water when it is cooled.
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Question 21 Mark
Fill in the blanks with appropriate words:
$.........$ is a reversible change.
Answer
Glowing of an electric bulb is a reversible change.
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Question 31 Mark
Fill in the blanks with appropriate words:
Changes that lead to the formation of new substances are called $.........$
Answer
Changes that lead to the formation of new substances are called alchemical.
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Question 41 Mark
Conversion of water vapour into liquid water is a $.........$ change.
Answer
Conversion of water vapour into liquid water is a Reversible change.
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Question 61 Mark
Fill in the blanks with appropriate words:
Burning of wood in a chulha is a $.........$ change.
Answer
Burning of wood in a chulha is a irreversible change.
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Question 71 Mark
If we blow a balloon. The shape and size of balloon has changed. This is a $.........$ change.
Answer
If we blow a balloon. The shape and size of balloon has changed. This is a Reversible change.
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Question 81 Mark
Wet clothes get dry. This is a reversible change because $.........$
Answer
Wet clothes get dry. This is a reversible change because They can again get wet if we put them in water.
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Question 91 Mark
Fill in the blanks with appropriate words:
On cooling, liquid $.........$ into solid.
Answer
On cooling, liquid freezes into solid.
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Question 101 Mark
Fill in the blanks with appropriate words:
Heat is a form of $.........$
Answer
Heat is a form of energy.
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Question 111 Mark
Fill in the blanks with appropriate words:
Conversion of a liquid to vapour by heating is called $.........$
Answer
Conversion of a liquid to vapour by heating is called evaporation.
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Question 121 Mark
If cold water is poured over a hot metal ring it $.........($Expand$/$ Contracts$)$
Answer
If cold water is poured over a hot metal ring it Contracts.
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Question 131 Mark
Fill in the blanks with appropriate words:
NO new substance is formed in $.........$
Answer
NO new substance is formed in physical changes.
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Question 141 Mark
Fill in the blanks with appropriate words:
The changes which are controlled by man are called $.........$
Answer
The changes which are controlled by man are called man$-$made changes.
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Question 151 Mark
Batter is changed into dosa. This is $.........($Reversible change$/$ Irreversible change$)$.
Answer
Batter is changed into dosa. This is Irreversible change.
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Question 161 Mark
Fill in the blanks with appropriate words:
Melting of candle wax is a$/$ an $.........$ change.
Answer
Melting of candle wax is a/ an reversible change.
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Question 171 Mark
Fill in the blanks with appropriate words:
If the removal of the cause of change leads to regain the original situation, then the change is known as $.........$
Answer
If the removal of the cause of change leads to regain the original situation, then the change is known as reversible change.
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Question 181 Mark
Take a glass of water. Dissolve two tea spoons sugar in it. These are changes in water which can $.........($Be reversed$/ $Not be reversed$)$
Answer
Take a glass of water. Dissolve two tea spoons sugar in it. These are changes in water which can Not be reversed.
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Question 191 Mark
When water is heated, it changes into $.........$
Answer
When water is heated, it changes into Water vapour.
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Question 201 Mark
Bud to flower is a $.........$ change. $($Reversible$/$ Irreversible$)$.
Answer
Bud to flower is a Irreversible change.
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