You've seen how gas has to be controlled. Can you answer some questions about it?
What do you know about controlling gas? Did Selina make sense?
See if you can answer these questions.
Read each question carefully and choose the best answer.
If you squash a gas more (increase the pressure), what happens to it?
the gas changes colour the gas gets colder the gas gets warmer
When customers use more gas, what will start to happen to the gas pressure?
the pressure will get higher the pressure will get lower the pressure will stay the same
Imagine you do these three things. Which one will NOT increase the pressure of a gas?
[images to be included]
sitting on a space-hopper and bouncing round a playground pumping up a bicycle tyre when it has gone flat making a squeak by letting the air out of the neck of a balloon
If you run cold water over a pipe that contains hot gas...
... the water gets warmer and the gas gets cooler ... the water gets warmer and the gas stays the same ... the gas gets warmer and the water gets warmer
The equipment that cools the gas is called...
a heat exchanger a cold compressor a heat generator
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