Air pressure

A nice summary from the BBC of air pressure here.

A reminder of the egg experiment:


How To Suck An Egg Into A Bottle


And the ruler/newspaper one:


How To Put A Ruler Under Pressure

Remember that we need to think back to Friday's lesson and the unequal heating of the earth's surface to understand why areas of high and low pressure develop.

Have a look here at the pressure charts and the surface pressure forecast, and have a go at predicting how the weather will change over the next few days!