Task 4 [To complete P2]


The material you use must be resistant to cold weather. 

You are going to test whether wood, plastic and metal are affected by

freezing conditions.


Practical: Resistance to freezing

Complete the following steps and record your data in the table below:

1.     Collect a wooden, plastic and metal equally sized block.  They have been in the freezer for 24hours

2.    Hit each block with a hammer

3.    Record any changes you see to the material




Shape before freezing

Shape after freezing











1.     Did any of the materials change shape?

2.    The best material for a window would not change shape after freezing.  Which material should they use? Why?


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