Quiz Questions (40 questions)
Question 1
Which of the following is the BEST definition of a chemical change?
Question 2
Which of the following is the BEST definition of a chemical change? (1 mark)
Question 3
Which of the following is the BEST definition of a chemical change? (1 mark)
Question 4
Which of the following is the BEST definition of a chemical change? (1 mark)
Question 5
The type of change where no new substance is formed and the change can often be reversed is called:
Question 6
The type of change where no new substance is formed and the change can often be reversed is called? (1 mark)
Question 7
The type of change where no new substance is formed and the change can often be reversed is called? (1 mark)
Question 8
The type of change where no new substance is formed and the change can often be reversed is called? (1 mark)
Question 9
You are told: “A change that forms a new substance and cannot be undone.” What type of change is this?
Question 10
You are told: “A change that forms a new substance and cannot be undone.” What type of change is this? (1 mark)
Question 11
You are told: “A change that forms a new substance and cannot be undone.” What type of change is this? (1 mark)
Question 12
You are told: “A change that forms a new substance and cannot be undone.” What type of change is this? (1 mark)
Question 13
A change that forms a new substance but allows the original substances to be regained is called:
Question 14
A change that forms a new substance but allows the original substances to be regained is called? (1 mark)
Question 15
A change that forms a new substance but allows the original substances to be regained is called? (1 mark)
Question 16
Which of the following BEST describes a temporary physical change?
Question 17
Which of the following BEST describes a temporary physical change? (1 mark)
Question 18
Which of the following BEST describes a temporary physical change? (1 mark)
Question 19
Which of the following BEST describes a temporary physical change? (1 mark)
Question 20
Which of the following BEST describes a temporary physical change? (1 mark)
Question 21
The diagram below shows ice melting into water.Which of the following statements BEST explains why this is a temporary physical change? (1 mark)
Question 22
The diagram below shows ice melting into water.Which of the following statements BEST explains why this is a temporary physical change? (1 mark)
Question 23
The diagram below shows ice melting into water.
Which of the following statements BEST explains why this is a temporary physical change? (1 mark)
Question 24
The diagram below shows ice melting into water.
Which of the following statements BEST explains why this is a temporary physical change? (1 mark)
Question 25
A shiny copper strip is heated strongly in air as shown in the diagram. After a while, the strip turns black. What does this observation show? (1 mark)
Question 26
A shiny copper strip is heated strongly in air as shown in the diagram. After a while, the strip turns black. What does this observation show? (1 mark)
Question 27
A shiny copper strip is heated strongly in air as shown in the diagram. After a while, the strip turns black. What does this observation show? (1 mark)
Question 28
A shiny copper strip is heated strongly in air as shown in the diagram. After a while, the strip turns black. What does this observation show? (1 mark)
Question 29
A student burns dry wood in a fireplace. Smoke rises and ash remains. What does this example show? (1 mark)
Question 30
A student burns dry wood in a fireplace. Smoke rises and ash remains. What does this example show? (1 mark)
Question 31
A student burns dry wood in a fireplace. Smoke rises and ash remains. What does this example show? (1 mark)
Question 32
A student burns dry wood in a fireplace. Smoke rises and ash remains. What does this example show? (1 mark)
Question 33
A student crumples a sheet of paper into a ball as shown in the diagram. They claim this is a chemical change.Why is the student’s claim incorrect? (1 mark)
Question 34
A student crumples a sheet of paper into a ball as shown in the diagram. They claim this is a chemical change.Why is the student’s claim incorrect? (1 mark)
Question 35
A student crumples a sheet of paper into a ball as shown in the diagram. They claim this is a chemical change.Why is the student’s claim incorrect? (1 mark)
Question 36
A student crumples a sheet of paper into a ball as shown in the diagram. They claim this is a chemical change.
Why is the student’s claim incorrect? (1 mark)
Question 37
A student crumples a sheet of paper into a ball as shown in the diagram. They claim this is a chemical change.
Why is the student’s claim incorrect? (1 mark)
Question 38
A student heats pink hydrated Cobalt (II) chloride and it turns blue. What should the student do to confirm that the change is temporary? (1 mark)
Question 39
A student heats pink hydrated Cobalt (II) chloride and it turns blue. What should the student do to confirm that the change is temporary? (1 mark)
Question 40
A student heats pink hydrated Cobalt (II) chloride and it turns blue. What should the student do to confirm that the change is temporary? (1 mark)
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