Wagon wheels
This task is about changes to metal when it is heated or cooled.
Question
1
Change answer
Years ago, wooden wheels had iron rims fitted. To fit the iron rim, it was heated, then put around the wooden wheel and allowed to cool.
a) What
two
main changes happen to the iron as it is
heated
?
Years ago, wooden wheels had iron rims fitted. To fit the iron rim, it was heated, then put around the wooden wheel and allowed to cool.
a) What
two
main changes happen to the iron as it is
heated
?
1.
2.
Question
1
Change answer
Once the iron rim is on the wooden wheel it cools.
b) What
two
main changes happen to the iron as it
cools
?
Once the iron rim is on the wooden wheel it cools.
b) What
two
main changes happen to the iron as it
cools
?
1.
2.
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