MW5093

 

The three states of matter are represented in the diagrams below.

A

 

 

 

 

 

 

 

  B

  C

 

a)              Identify the diagram that represents

              i)              a solid. A

              ii)              steam. C

b)              Name a substance that could be represented by diagram B. Liquid_

c)              Explain why substances represented by diagram C can be compressed, but the others

              cannot.

The particles in A and B which are solid and Liquid they cant get any closer and the       particles in C are far apart.

 

d)              Condensation is a change of state. Complete the condensation equation below by putting one letter from the diagrams above (A, B, C) into each circle.

 

  

    B

  

    C             

 

 

 

 

 

 

 

12:02

Strand              Objective                            Level               Resource type                            Integrating strand                     MW5093

MW                            ob1a                                          5                            BCR                            -

 

Keywords

States; particle nature of matter; NCEA.

 

Description

Students are given diagrams representing the three states of matter.  Students answer four questions relating to these.

 

 

MW5093

 

Scoring: Answers/Responses: Answers/

Responses: Answers/Resp

onses: Y10 (11/02)

1 mark a) i) A very easy

(for both correct)

ii)

C 1 mark b)   Any liquid, e.g., water. moderate 1 mark

1 mark

1 mark

c)   The particles in C are far apart.

The particles in C can be moved closer.

The particles in A and B are already close and can’t get closer.

difficult

difficult

difficult

B

C

1 mark

 

d)  

 

 

 

moderate

Total:  6 marks Total:  6 marks Total:  6 marks Total:  6 marks Total:  6 marks  

Diagnostic information

  Analysis of responses

d) Percentage of students giving each answer.

C ® B: 49%

C ® A:  7%

A ® B: 10%

A ® C: 17%

Missing/No answer: 17%