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States of Matter
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Why does a mercury in a thermometer expands?
The mercury in a thermometer expands due to the heat of our body
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What are the different changes of state that can occur in matter?
Melting, freezing, Evaporation, Condensation
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A _________ has a fixed shape and a fixed volume.
Solid
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The change of paper into ash is an example of
Chemical change
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What are the three states of matter?
Solid, liquid and gas
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Which state of matter has no definite shape, but has a definite volume?
Liquid
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Give one example of physical change.
.....
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How do molecules move in gases?
They move freely in all directions.
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What do you know about solid's molecules?
The molecules in solids attract each other very strongly.
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Which change of state can you see in the given picture?
Evaporation
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Mention 3 solid objects that start with the letter 'C'
.......
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What is condensation?
The process of gases changing into liquids on cooling is called condensation?
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What are molecules?
Matter is made up of tiny particles called molecules.
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