Temporary and Permanent Changes Practice Exercise 1

Define a permanent chemical change.  (1 mark)

Define a permanent chemical change.  (1 mark)

Define a physical change. (1 mark)

Define a physical change. (1 mark)

Define a physical change. (1 mark)

Explain what is meant by a temporary physical change. (1 mark)

Explain what is meant by a temporary physical change. (1 mark)

What is a chemical change?  (1 mark)

What is a chemical change?  (1 mark)

What is a chemical change?  (1 mark)

What is a chemical change?  (1 mark)

What is a temporary chemical change?  (1 mark)

The diagram shows a strip of aluminium metal being heated strongly in a Bunsen flame. A white solid forms on the surface of the strip.a) Name the white solid formed after the reaction. (1 mark) b) What type of change is shown in the diagram? (1 mark) c) Give two reasons, based on the observations, why this change is considered permanent. (2 marks)

The diagram shows a strip of aluminium metal being heated strongly in a Bunsen flame. A white solid forms on the surface of the strip.a) Name the white solid formed after the reaction. (1 mark) b) What type of change is shown in the diagram? (1 mark) c) Give two reasons, based on the observations, why this change is considered permanent. (2 marks)

List and explain any four characteristics of a temporary chemical change. (4 marks)

List and explain any four characteristics of a temporary chemical change. (4 marks)

List and explain four key characteristics of temporary physical changes. For each characteristic, provide one example. (4 marks)

List and explain four key characteristics of temporary physical changes. For each characteristic, provide one example. (4 marks)

List any four characteristics of permanent chemical changes and give an example to support each point. (4 marks)

List any four characteristics of permanent chemical changes and give an example to support each point. (4 marks)

List any four characteristics of permanent chemical changes and give an example to support each point. (4 marks)

List any four characteristics of permanent chemical changes and give an example to support each point. (4 marks)

The diagram below shows a piece of paper being folded into a fan shape.a) Name the type of change shown. (1 mark)b) Describe two characteristics that show what this type of change is. (2 marks)c) Would the paper remain changed if unfolded? Give a reason. (2 marks)

The diagram below shows a piece of paper being folded into a fan shape.a) Name the type of change shown. (1 mark)b) Describe two characteristics that show what this type of change is. (2 marks)c) Would the paper remain changed if unfolded? Give a reason. (2 marks)

The diagram below shows a piece of paper being folded into a fan shape.a) Name the type of change shown. (1 mark)b) Describe two characteristics that show what this type of change is. (2 marks)c) Would the paper remain changed if unfolded? Give a reason. (2 marks)

The diagram below shows a piece of paper being folded into a fan shape.a) Name the type of change shown. (1 mark)b) Describe two characteristics that show what this type of change is. (2 marks)c) Would the paper remain changed if unfolded? Give a reason. (2 marks)

The diagram below shows a piece of paper being folded into a fan shape. a) Name the type of change shown. (1 mark)b) Describe two characteristics that show what this type of change is. (2 marks)c) Would the paper remain changed if unfolded? Give a reason. (2 marks)