Thursday, April 22, 2010

Jesiah Learns about Pressure

On Monday afternoon Miss King handed out balloons so we could learn about pressure When we blew up our balloon we were puffing and straining. Then we blew it bigger and bigger and we let it go and it made a squeaking sound.
Inside a balloon the air builds pressure just like the magma in a volcano. But when the pressure rises to be released. Magma, gas, smoke and ash come out of the vent and out the crater.
Click here to see our movie about what we learnt.

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