KS3 Science-Chemistry Quiz on "ATOMS and ELEMENTS" (based on QCA 8E)

Which word means the 'smallest particle of a substance'? [8e-1]
1. atom
2. molecule
3. symbol
4. formula
Which word means 'a larger particle formed by bonding together the smallest particles of substances'? [8e-2]
1. atom
2. molecule
3. symbol
4. formula
Which word means the 'shorthand for a chemical element'? [8e-3]
1. atom
2. molecule
3. symbol
4. formula
Which word means 'a summary of the number of atoms of each element in a compound'? [8e-4]
1. atom
2. molecule
3. symbol
4. formula
Which of these is an element? [8e-5]
1. Cu
2. CO
3. MgO
4. H₂O
Which of these is an element? [8e-6]
1. CoO
2. Mg
3. CO₂
4. NaCl
Which of these is an element? [8e-7]
1. CoO
2. MgS
3. O₂
4. NaCl
Which of these is an element? [8e-8]
1. KCl
2. MgS
3. F₂O
4. P₄
Which of these is a compound? [8e-9]
1. CO₂
2. Co
3. F₂
4. P₄
Which of these is a compound? [8e-10]
1. Co
2. MgO
3. F₂
4. P₄
Which of these is a compound? [8e-11]
1. Fe
2. Co
3. CO
4. H₂
Which of these is a compound? [8e-12]
1. Fe
2. Co
3. Ca
4. H₂O
Which of these is an element? [8e-13]
1. nitrogen
2. carbon monoxide
3. water
4. petrol
Which of these is an element? [8e-14]
1. nitrogen monoxide
2. magnesium
3. water
4. alcohol
Which of these is an element? [8e-15]
1. water
2. magnesium oxide
3. bromine
4. alcohol
Which of these is an element? [8e-16]
1. water
2. magnesium oxide
3. brass
4. copper
Which of these is a compound? [8e-17]
1. carbon monoxide
2. magnesium
3. brass
4. bromine
Which of these is a compound? [8e-18]
1. carbon
2. water
3. copper
4. bromine
Which of these is a compound? [8e-19]
1. carbon
2. phosphorus
3. copper oxide
4. bromine
Which of these is a compound? [8e-20]
1. brass (alloy)
2. phosphorus (red)
3. copper (roofing)
4. ethanol (alcohol)
Which of these words means 'one type of atom only'? [8e-21]
1. element
2. compound
3. reactant

KS3 Science-Chemistry Quiz on "ATOMS and ELEMENTS" (based on QCA 8E)

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