Learning about Pressure - April 22 2010

On Monday afternoon Miss King gave Room 14 a balloon each to show pressure. As we blew the balloons we were puffing and straining hard to expand our balloons. Suddenly our balloons popped like a massive volcano exploding. The balloon made sounds like the wind.

The air in the balloon is like hot magma but in a volcano. When the magma rises and fills up the magma chamber, pressure builds and ash, smoke and magma goes up the vent then out the crater. Then the volcano explodes like fireworks.

Click here to see the movie about what we learnt.