Flammable Liquids
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A look at the reasons why the liquid petrol is flammable.
Demonstration showing petrol burning, highlighting the reason why some liquids are very flammable. Evaporisation is discussed which, unlike boiling, can occur at any temperature. Petrol evaporates in normal temperatures and it is the gas on top of the liquid that is flammable.
From:
Science Clips Gases Around Us
First Broadcast
:
13 February 2004
Teachers' notes
Age Group : 7-9,9-11
Subject : Science
Topic : Materials and their properties
Keywords : Classifying materials
Notes : This clip could be used to help children recognise that certain situations are potentially hazardous Also can be used to demonstrate states of matter. Petrol exists as both a liquid and a gas at room temperature.
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