Temporary and Permanent Changes Practice Exercise 8

Course: Grade 8 Integrated Science - Physical and chemical changes - Temporary and permanent physical and chemical changes

Quiz Questions (62 questions)

Question 1
Mutheu burns a piece of paper during a general cleaning day in her school. The paper turns black and forms ash as shown below. What does this show?  (1 mark)
Question 2
Mutheu burns a piece of paper during a general cleaning day in her school. The paper turns black and forms ash as shown below. What does this show?  (1 mark)
Question 3
Mutheu burns a piece of paper during a general cleaning day in her school. The paper turns black and forms ash as shown below. What does this show?  (1 mark)
Question 4
Mutheu burns a piece of paper during a general cleaning day in her school. The paper turns black and forms ash as shown below. What does this show?  (1 mark)
Question 5
Nia heated a saltwater solution in a dish. After some time, the water evaporated, and salt crystals were left. What kind of change occurred?  (1 mark)
Question 6
Nia heated a saltwater solution in a dish. After some time, the water evaporated, and salt crystals were left. What kind of change occurred?  (1 mark)
Question 7
Nia heated a saltwater solution in a dish. After some time, the water evaporated, and salt crystals were left. What kind of change occurred?  (1 mark)
Question 8
A learner mixes vinegar and baking soda. The mixture fizzes and bubbles form quickly. What does this bubbling show?  (1 mark)
Question 9
A learner mixes vinegar and baking soda. The mixture fizzes and bubbles form quickly. What does this bubbling show?  (1 mark)
Question 10
A learner mixes vinegar and baking soda. The mixture fizzes and bubbles form quickly. What does this bubbling show?  (1 mark)
Question 11
A learner mixes vinegar and baking soda. The mixture fizzes and bubbles form quickly. What does this bubbling show?  (1 mark)
Question 12
A learner mixes vinegar and baking soda. The mixture fizzes and bubbles form quickly. What does this bubbling show?  (1 mark)
Question 13
A shiny copper strip is strongly heated. After a short time, its surface turns black. What kind of change has occurred?  (1 mark)
Question 14
A shiny copper strip is strongly heated. After a short time, its surface turns black. What kind of change has occurred?  (1 mark)
Question 15
A shiny copper strip is strongly heated. After a short time, its surface turns black. What kind of change has occurred?  (1 mark)
Question 16
A shiny copper strip is strongly heated. After a short time, its surface turns black. What kind of change has occurred?  (1 mark)
Question 17
Aaliyah placed a wet cloth in the sun. After a while, it was completely dry. Which explanation best describes the change?  (1 mark)
Question 18
Aaliyah placed a wet cloth in the sun. After a while, it was completely dry. Which explanation best describes the change?  (1 mark)
Question 19
Aaliyah placed a wet cloth in the sun. After a while, it was completely dry. Which explanation best describes the change?  (1 mark)
Question 20
Aaliyah placed a wet cloth in the sun. After a while, it was completely dry. Which explanation best describes the change?  (1 mark)
Question 21
As a candle burns, the wax melts and the wick becomes black and turns into ash as shown below. Which of the following statements is TRUE?  (1 mark)
Question 22
As a candle burns, the wax melts and the wick becomes black and turns into ash as shown below. Which of the following statements is TRUE?  (1 mark)
Question 23
As a candle burns, the wax melts and the wick becomes black and turns into ash as shown below. Which of the following statements is TRUE?  (1 mark)
Question 24
As a candle burns, the wax melts and the wick becomes black and turns into ash as shown below. Which of the following statements is TRUE?  (1 mark)
Question 25
James placed a block of butter in a pan. It melted, then started to turn brown and smelled nutty. What kind of change took place when browning started?  (1 mark)
Question 26
James placed a block of butter in a pan. It melted, then started to turn brown and smelled nutty. What kind of change took place when browning started?  (1 mark)
Question 27
James placed a block of butter in a pan. It melted, then started to turn brown and smelled nutty. What kind of change took place when browning started?  (1 mark)
Question 28
James placed a block of butter in a pan. It melted, then started to turn brown and smelled nutty. What kind of change took place when browning started?  (1 mark)
Question 29
Jane blows air into a balloon. After releasing it, the balloon returns to its original size. What best describes this change?  (1 mark)
Question 30
Jane blows air into a balloon. After releasing it, the balloon returns to its original size. What best describes this change?  (1 mark)
Question 31
Jane blows air into a balloon. After releasing it, the balloon returns to its original size. What best describes this change?  (1 mark)
Question 32
Jane blows air into a balloon. After releasing it, the balloon returns to its original size. What best describes this change?  (1 mark)
Question 33
Learners stirred sugar into warm water during an experiment. What kind of change takes place when sugar dissolves in water?  (1 mark)
Question 34
Learners stirred sugar into warm water during an experiment. What kind of change takes place when sugar dissolves in water?  (1 mark)
Question 35
Learners stirred sugar into warm water during an experiment. What kind of change takes place when sugar dissolves in water?  (1 mark)
Question 36
Learners stirred sugar into warm water during an experiment. What kind of change takes place when sugar dissolves in water?  (1 mark)
Question 37
Learners stirred sugar into warm water during an experiment. What kind of change takes place when sugar dissolves in water?  (1 mark)
Question 38
Marion noticed that her home’s iron roof sheets turned reddish-brown after several weeks of rain as shown below. What does this change tell us?  (1 mark)
Question 39
Marion noticed that her home’s iron roof sheets turned reddish-brown after several weeks of rain as shown below. What does this change tell us?  (1 mark)
Question 40
Marion noticed that her home’s iron roof sheets turned reddish-brown after several weeks of rain as shown below. What does this change tell us?  (1 mark)
Question 41
Marion noticed that her home’s iron roof sheets turned reddish-brown after several weeks of rain as shown below. What does this change tell us?  (1 mark)
Question 42
Salma poured pancake batter into a hot pan. After a short time, it became solid and smelled sweet. What kind of change happened? (1 mark)
Question 43
Salma poured pancake batter into a hot pan. After a short time, it became solid and smelled sweet. What kind of change happened? (1 mark)
Question 44
Salma poured pancake batter into a hot pan. After a short time, it became solid and smelled sweet. What kind of change happened? (1 mark)
Question 45
The diagram below shows vinegar being poured into a bowl of baking soda, bubbles rising. What does the bubbling in the diagram show?  (1 mark)
Question 46
The diagram below shows vinegar being poured into a bowl of baking soda, bubbles rising. What does the bubbling in the diagram show?  (1 mark)
Question 47
The diagram below shows vinegar being poured into a bowl of baking soda, bubbles rising. What does the bubbling in the diagram show?  (1 mark)
Question 48
The diagram below shows vinegar being poured into a bowl of baking soda, bubbles rising. What does the bubbling in the diagram show?  (1 mark)
Question 49
The diagram shows a student tearing paper into small pieces. Which of the following statements is most accurate?  (1 mark)
Question 50
The diagram shows a student tearing paper into small pieces. Which of the following statements is most accurate?  (1 mark)
Question 51
The diagram shows a student tearing paper into small pieces. Which of the following statements is most accurate?  (1 mark)
Question 52
The diagram shows a student tearing paper into small pieces. Which of the following statements is most accurate?  (1 mark)
Question 53
The diagram shows ice cubes in a glass left at room temperature. After some time, the ice melts into water. What type of change is this and why? (1 mark)
Question 54
The diagram shows ice cubes in a glass left at room temperature. After some time, the ice melts into water. What type of change is this and why? (1 mark)
Question 55
The diagram shows ice cubes in a glass left at room temperature. After some time, the ice melts into water. What type of change is this and why? (1 mark)
Question 56
The diagram shows ice cubes in a glass left at room temperature. After some time, the ice melts into water. What type of change is this and why? (1 mark)
Question 57
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)
Question 58
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)
Question 59
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)
Question 60
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)
Question 61
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)
Question 62
What type of change is shown in the diagram below when sugar solution is heated gently?  (1 mark)

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