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===Meaning===
[[File:U-shapedTube.png|right|300px|thumb|A picture of a '''u-shaped tube'''.]]
A '''u-shaped tube''' is a glass tube with a u-shape.
===About U-Shaped Tubes===
: '''U-shaped tubes''' are used when a [[gas]] or a [[chemical]] in the [[air]] needs to be passed through a material in the '''u-tube''', especially at a lower [[temperature]].
==Key Stage 4==
===Meaning===
A '''u-shaped tube''' is a glass tube with a u-shape.
===About U-Shaped Tubes===
: '''U-shaped tubes''' are used when a [[gas]] or a [[chemical]] in the [[air]] needs to be passed through a material in the '''u-tube''', especially at a lower [[temperature]].