WorksheetsIS_Unit2_Checkpoint 2.7_E
Total questions: 7
Worksheet time: 4mins
Which of the following water purification method(s) can remove large insoluble impurities (e.g. mud and sand)?
(1) Sedimentation
(2) Filtration
(3) Distillation
A. (1) only
B. (2) only
C. (1) and (2) only
D. (1), (2) and (3)
Which of the following water purification method(s) can remove small insoluble impurities?
(1) Sedimentation
(2) Filtration
(3) Distillation
A. (2) only
B. (1) and (2) only
C. (2) and (3) only
D. (1), (2) and (3)
Which of the following water purification method(s) can remove soluble impurities?
(1) Sedimentation
(2) Filtration
(3) Distillation
A. (3) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
Which of the following water purification method(s) can remove microorganisms?
(1) Sedimentation
(2) Filtration
(3) Distillation
A. (2) only
B. (3) only
C. (1) and (3) only
D. (1), (2) and (3)
Leo tries to use the set-up shown below to remove red food colouring from a beaker of water.
(a) What is the water purification method Leo is using?
A. Sedimentation
B. Filtration
C. Distillation
Leo tries to use the set-up shown below to remove red food colouring from a beaker of water.
(b) Leo has quickly found that food colouring cannot be removed from water with this purification method. Why?
A. This method works because the food colouring pass through the pores on the filter paper.
B. This method works because the food colouring cannot pass through the pores on the filter paper.
C. This method does not work because the food colouring passes through the pores on the filter paper.
D. This method does not work because the food colouring cannot passes through the pores on the filter paper.
Leo tries to use the set-up shown below to remove red food colouring from a beaker of water.
(c) Which purification method can remove food colouring from water?
A. Sedimentation
B. Filtration
C. Distillation
D. None of the above
