Knives and forks

Knives and forks

Pencil and paperOnline interactive
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Marking Student Responses
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This task is about physical properties of metal and plastic.

Question 1Change answer

illustration: knife and fork
a)  Knives and forks are usually made of metal.
     What are two reasons metal is used to make knives and forks?
1. 2.

Question 1Change answer

b)  Some knives and forks are made of plastic.
     Why is plastic not as good for making knives and forks?
Task administration: 
This task can be completed with pencil and paper or online.
Copyright: 
illustration: knife and fork
Image: Sebastiano_Rizzardo | Pixabay | Public domain
Level:
2
Curriculum info: 
Science, Knowledge, Material World
Keywords: 
properties, metals, plastics, physical properties
Description of task: 
Students explain why metal is used to make cutlery, and describe a disadvantage of plastic cutlery.
Curriculum Links: 
Knowledge: students use their everyday knowledge to answer questions about the properties of metal and plastic.
Answers/responses: 
  

Y4 (10/1999)
a) Any 2 properties of metal:

  • Hard/strong/doesn't break or bend easily.
  • Cuts easily/can be sharpened/is sharp.
  • Doesn't break easily.
  • Doesn't melt easily.
  • Can be washed easily.
  • Any other acceptable property.
2 correct – difficult

1 correct – easy
b) Any 1 of:

  • They are not as strong.
  • They may break.
  • They do not cut well.
  • They may melt.

very easy