Quiz Questions (35 questions)
Question 1
What change of state is involved when mothballs disappear over time when left in open air? (1mark)
Question 2
What change of state is involved when mothballs disappear over time when left in open air? (1mark)
Question 3
What change of state is involved when mothballs disappear over time when left in open air? (1mark)
Question 4
What change of state occurs when a cold water bottle is left in the open and droplets form? (1mark)
Question 5
What change of state occurs when a cold water bottle is left in the open and droplets form? (1mark)
Question 6
What change of state occurs when a cold water bottle is left in the open and droplets form? (1mark)
Question 7
What change of state occurs when butter is being heated in a pan as shown below? (1mark)
Question 8
What change of state occurs when butter is being heated in a pan as shown below? (1mark)
Question 9
What change of state occurs when butter is being heated in a pan as shown below? (1mark)
Question 10
Which substance undergoes sublimation under room conditions? (1mark)
Question 11
Which substance undergoes sublimation under room conditions? (1mark)
Question 12
Which substance undergoes sublimation under room conditions? (1 mark)
Question 13
At what condition does water vapour turn back to liquid inside a closed container when cooled? (1 mark)
Question 14
At what condition does water vapour turn back to liquid inside a closed container when cooled? (1 mark)
Question 15
At what condition does water vapour turn back to liquid inside a closed container when cooled? (1 mark)
Question 16
A student adds ice cubes to juice to cool it. After some time, the ice melts. What kind of change is melting ice? (1 mark)
Question 17
A student adds ice cubes to juice to cool it. After some time, the ice melts. What kind of change is melting ice? (1 mark)
Question 18
A student adds ice cubes to juice to cool it. After some time, the ice melts. What kind of change is melting ice? (1 mark)
Question 19
A student adds ice cubes to juice to cool it. After some time, the ice melts. What kind of change is melting ice? (1 mark)
Question 20
The diagram below shows firewood burning in a cooking stove. What type of change is illustrated? (1 mark)
Question 21
The diagram below shows firewood burning in a cooking stove. What type of change is illustrated? (1 mark)
Question 22
The diagram below shows firewood burning in a cooking stove. What type of change is illustrated? (1 mark)
Question 23
The diagram below shows firewood burning in a cooking stove. What type of change is illustrated? (1 mark)
Question 24
The diagram shows a metal water tank with reddish-brown rust on its surface. What type of change is rusting, and what causes it to happen? (2 marks)
Question 25
The diagram shows a metal water tank with reddish-brown rust on its surface. What type of change is rusting, and what causes it to happen? (2 marks)
Question 26
The diagram shows a metal water tank with reddish-brown rust on its surface. What type of change is rusting, and what causes it to happen? (2 marks)
Question 27
The diagram shows a metal water tank with reddish-brown rust on its surface. What type of change is rusting, and what causes it to happen? (2 marks)
Question 28
What type of change happens when dough is baked to make bread, and why is it not reversible? (2 marks)
Question 29
What type of change happens when dough is baked to make bread, and why is it not reversible? (2 marks)
Question 30
What type of change happens when dough is baked to make bread, and why is it not reversible? (2 marks)
Question 31
What type of change happens when dough is baked to make bread, and why is it not reversible? (2 marks)
Question 32
What type of change takes place when salt is separated from salty water by heating? (1 marks)
Question 33
What type of change takes place when salt is separated from salty water by heating? (1 marks)
Question 34
What type of change takes place when salt is separated from salty water by heating? (1 mark)
Question 35
What type of change takes place when salt is separated from salty water by heating? (1 mark)
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