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Elementary School: 3rd, 4th & 5th Grade
Science
Atoms And Elements 3
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Q.1
Which of these metals is a pure element?
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Brass
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Bronze
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Silver
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Steel
Q.2
The correct chemical symbol for magnesium is .......
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Mg
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mg
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MG
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mG
Q.3
An element is a substance that .......
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Can be split up by physical methods
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Can be split up into simpler parts by a chemical reaction
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Is made up of different kinds of atom
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Is made up of only one kind of atom
Q.4
When two elements combine, the name of the compound will end in .......
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-ATE
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-IDE
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-ITE
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-IUM
Q.5
C is the correct chemical symbol for .......
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Calcium
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Carbon
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Chlorine
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Cobalt
Q.6
When the elements lead and bromine combine together, the name of the substance formed is called .......
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Lead bromate
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Lead bromide
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Lead bromite
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Lead bromium
Q.7
The smallest part of an element is called .......
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A mixture
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A molecule
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An atom
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An ion
Q.8
Which of these show a diatomic element?
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CO
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H₂
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He
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SO₂
Q.9
Which of these substances is an element?
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Air
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Fire
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Oxygen
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Water
Q.10
Which of these substances is an element?
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Chlorine
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Ice
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Methane
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Sodium chloride
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