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Science Y6 – Materials and their Properties – week 11 – test
TEST 2 ON MATERIALS Name: ______________________
1. What is chemistry? _______________________________________________________________________________________
(1 mark)
2. Tick the true statements about solids, liquids and gases. (5 marks)
a) Liquids do not flow.
b) Gases have no definite volume.
c) Solids keep the same volume.
d) Gases stay the same shape.
e) Liquids take the shape of the container.
3. Complete this statement. SOLVENT + ___________________________ = ___________________________ (2 marks)
4. Name three chemicals which dissolve in water. ___________________________________________
___________________________________________ ___________________________________________ (3 marks)
5. Can unlimited amounts of solid be dissolved in a set amount of water? ____________________________ (1 mark)
6. Give three examples of reversible changes. (3 marks)
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7. Give three examples of irreversible changes. (3 marks)
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8. Define the following words: - (4 marks)
a) evaporation _______________________________________________________________________________________
b) condensation _______________________________________________________________________________________
c) solute _______________________________________________________________________________________
d) solvent _______________________________________________________________________________________
9. How would you separate iron nails, salt and sand? ________________________________________________________
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(2 marks)
10. How would separate soil and stones? _______________________________________________________________________
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(1 mark)
Total marks = 25
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