1. Year 9 Water
Round 1

2. Question One Name the 3 states of matter

3. Question Two
Describe what the particles are like in a solid

4. Question Three
Describe what the particles are like in a liquid

5. Question Four
Water exists in each of the 3 states. Name them.

6. Why can gases be squashed?
Question Five
Why can gases be squashed?

7. Year 9 Water
Round ANSWERS

8. Question One Name the 3 states of matter Solid Liquid Gas

9. Question Two
Describe what the particles are like in a solid Close together and vibrating about a fixed position

10. Question Three
Describe what the particles are like in a liquid Close together and able to slide past each other

11. Question Four Water exists in each of the 3 states. Name them.
ICE WATER WATER VAPOUR

12. Why can gases be squashed Because they are far apart
Question Five
Why can gases be squashed Because they are far apart

13. Year 9 Water
Round 2
Changes of State

14. Question 1 Name the changes of state when a: Liquid changes into a gas
Gas changes in to a liquid
Solid changes into a gas
Solid changes into a liquid

15. Question Two a) What is this piece of equipment called?
b) What does it measure?

16. Question 3 What is the unit for mass and what is the unit symbol?

17. Question Four
Name this piece of equipment and what is it used to measure?

18. Question Five
Name the curved surface of the liquid in the measuring cylinder?
What is the volume of liquid in this measuring cylinder

19. Round 2 Changes of State and Measuring- ANSWERS
Year 9 Water
Round 2
Changes of State and Measuring- ANSWERS

20. Question 1 Name the changes of state when a: Liquid changes into a gas
Evaporation/boiling
b) Gas changes into a liquid
Condensation
c) Solid changes into a gas
Sublimation
d) Solid changes into a liquid
Melting

21. Question Two What is this piece of equipment called?
Electronic balance
b) What does it measure?
Mass

22. Question 3 What is the unit for mass and what is the unit symbol
Question 3 What is the unit for mass and what is the unit symbol? grams g

23. Question Four
Name this piece of equipment and what is it used to measure? Measuring cylinder The volume of a liquid

24. Question Five
Name the curved surface of the liquid in the measuring cylinder?
MENISCUS
What is the volume of liquid in this measuring cylinder
43 mL

25. Round 3 Atoms and molecules
Year 9 Water
Round 3
Atoms and molecules

26. Question one What is the meaning of the word element?

27. Question Two What is the meaning of the word compound?

28. Question Three
Which picture represents atoms of an element? A B C

29. Question 4 Which picture(s) show(s) molecules A B C

30. Question Five
Which letter(s) show compounds?
A B C

31. Round 3 Atoms and molecules-ANSWERS
Year 9 Water
Round 3
Atoms and molecules-ANSWERS

32. Question one What is the meaning of the word element
Question one What is the meaning of the word element? A pure substance made of only one type of atom

33. Question Two What is the meaning of the word compound?
Pure substances which contain atoms of 2 or more elements in a fixed ratio

34. Question Three
Which picture represents atoms of an element? A B C C

35. Question 4 Which picture(s) show(s) molecules A B C

36. Which letter(s) show compounds? A B C
Question Five
Which letter(s) show compounds?
A B C A B

37. Round 4 Chemical symbols and formulae
Year 9 Water
Round 4
Chemical symbols and formulae

38. Question One
Write the name for the following elements Cu Mg Fe Pb

39. Question Two
Write the name for the following elements: O N S Cl

40. Question 3
Write the symbol for the following elements:
sodium
potassium
aluminium

41. Question four
How many atoms in total are there in:
MgSO4
C6H12O6

42. Question Five
Write the chemical formula for water

43. Round 4 Chemical symbols and formulae-ANSWERS
Year 9 Water
Round 4
Chemical symbols and formulae-ANSWERS

44. Question One
Write the name for the following elements
Cu Copper
Mg Magnesium
Fe Iron
Pb Lead

45. Question Two
Write the name for the following elements:
O oxygen
N nitrogen
S sulfur
Cl chlorine

46. Question 3
Write the symbol for the following elements:
Sodium Na
Potassium K
Aluminium Al

47. Question four
How many atoms in total are there in:
MgSO
C6H12O

48. Question Five
Write the chemical formula for water
H2O

49. Round 5 Mixtures & Separation Methods
Year 9 Water
Round 5
Mixtures & Separation Methods

50. Question one
What is the definition of a mixture?

51. Question Two Which letter represents a mixture? A B C

52. Question 3 In a glass of mango-flavoured Refresh, name the: Solute
Solvent
Final mixture where the refresh powder has dissolved.

53. Question 4
What method would you use to separate sand from water?

54. Question Five
What is the meaning of the word soluble? Give and example of a substance that is soluble in water

55. Round 5 Mixtures & Separation Methods-ANSWERS
Year 9 Water
Round 5
Mixtures & Separation Methods-ANSWERS

56. Question one What is the definition of a mixture?
2 or more pure substances that are mixed together but are NOT chemically combined.

57. Question Two Which letter represents a mixture? A B C

58. Question 3 In a glass of mango-flavoured Raro, name the:
Solute- Raro powder
Solvent- Water
Final mixture where the refresh powder has dissolved Solution

59. FILTRATION OR DECANTING
Question 4
What method would you use to separate sand from water?
FILTRATION OR DECANTING

60. Question Five
What is the meaning of the word soluble? Able to dissolve Give and example of a substance that is soluble in water Salt