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- 1. Multiple Choice
Which of these is an element?
Salt (NaCl)
Water (H20)
Oxygen (O)
Carbon Dioxide (CO2)
- 2. Multiple Choice
Which of these is a compound?
Aluminium (Al)
Carbon Dioxide (CO2)
Nitrogen (N)
Sand
- 3. Multiple Choice
Which of these is a mixture?
Laundry Detergent
Salt (NaCl)
Oxygen (O)
Fluorine (Fl)
- 4. Multiple Choice
Air is:
An element
A compound
A mixture
None of these
- 5. Multiple Choice
Which is smaller: a human cell or an atom?
Human cell
Atom
- 6. Multiple Choice
What is the common thing in an element, compound and mixture?
They are all made up of atoms
They are all made up of compounds
They are all mixtures
- 7. Multiple Choice
What is the difference between O and H2O?
There is no difference
O is an element and H2O is a compound
- 8. Multiple Choice
Identify this image
An element
A compund
A mixture
None of these
- 9. Multiple Choice
Why are elements and compounds called pure substances?
They are only made up of one particular kind of an atom
They are made up of different type of atoms
They are only made up of one type of atom or one type of molecule
None of these
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