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TPS4Hope
.. a glimpse of life .. and learning .. in TPS 4Hope
Wednesday, March 25, 2009
Expansion and Contraction of Matter
Yang Zhi is trying to find out if the ball can go through the ring, after the ball has been heated.
Teacher's Demonstration: Workbook Activity 2.5
Pupils take turns to observe the water level in the glass tube (before and after expansion).
When the flask is heated, the air inside it gains heat and expands into the balloon, causing it to inflate.
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