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Middle School: 6th, 7th and 8th Grade
Science
Solids, Liquids And Gases 3
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Q.1
When a gas changes to a liquid, it .......
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Boils
0%
Condenses
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Melts
0%
Sublimes
Q.2
If matter has energy taken away .......
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It contracts
0%
It expands
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It vaporizes
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Nothing happens
Q.3
Which will have the highest boiling point?
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Distilled water
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Pure water
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Salty water
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Tap water
Q.4
When a smell spreads, particles move away from where they originated. This is called .......
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Condensation
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Diffusion
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Dispersion
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Evaporation
Q.5
When a solid changes to a liquid, it .......
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Boils
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Condenses
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Freezes
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Melts
Q.6
Which is the most dense substance in this list?
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Aluminium
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Lead
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Oxygen
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Water
Q.7
The state of matter which has very low density is .......
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Gas
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Liquid
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Solid
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Solution
Q.8
If you reduce the volume of a gas .......
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It expands
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It gets bigger
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The pressure increases
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The temperature falls
Q.9
Which of these statements about solids is true?
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They can be compressed easily
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They do not flow
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They have no definite volume
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They take the shape of their container
Q.10
A balloon is filled with gas. Inside the balloon the gas particles .......
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Are avoiding each other
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Are moving slowly
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Are moving very quickly
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Are not moving
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