A teacher puts some cold water in a test-tube.
She holds the bottom of the test-tube while heating the top.
The water at the top boils but she continues to hold the test-tube as the bottom remains cold.
Which conclusion about water is made from this experiment?

Water is a bad conductor.
2 )
Water is a bad connector.
3 )
Water is a good conductor.
4 )
Water is a good convecto.
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