How to make a barometer
This mini science investigation shows you how to make a DIY barometer to measure air pressure. Air pressure can be used to predict the weather and is one of many factors used by meteorologists.
What does low or high pressure mean for the weather?
Low pressure usually means wet, cloudy, rainy weather while high pressure is an indicator of dry and cool weather.
Barometers are used to measure atmospheric pressure.
What is atmospheric pressure?
The Earth has a layer of air surrounding it. This air has weight and presses down the Earth. At higher altitudes the air is thinner so air pressure is lower.
To make a barometer you will need
Jar or coffee can
Elastic band
Pin or cocktail stick
Tape
Glue
Straw
Paper
How to make a barometer
Blow up the balloon a little bit, the more air in the balloon, the greater