How To Make A Barometer

A homemade barometer can make an interesting science project for young students or be a good at home science project for children and parents to complete together.

How to make a barometer. Directions on how to make your own barometer. Tape the ruler down then tape clean tubing above it. Add a few drops of food coloring to water then fill the bottle up halfway. Stretch the balloon tightly over the jar or can and either sellotape or use the elastic band to fix it tightly.

The homemade barometer part 3. 3 stretch the balloon so it fits over the mouth of the jar nice and tight the tighter the better. Most of these items should be easily found around the home. 1 set the glass jar on a straight firm surface.

Make your own water barometer or weather glass. A barometer measures atmospheric pressure and will register changes that correspond to the weather at a given time. A barometer measures air pressure. Lay the straw over the top of the wrapped container so that about two thirds of the straw is over the opening.

You want to create an airtight seal and a smooth surface. A rising barometer indicates increasing air pressure. Many barometers use mercury tubes to help measure the air pressure but today we are going to make one that will work using a few items you have around your house. For this project you will need a.

A falling barometer indicates decreasing air pressure. Tape or glue the end of the straw to the centre of the balloon and sellotape the pin or cocktail stick to the end. To make a simple weather barometer with water cut the top off a plastic bottle and stand a ruler up inside. 2 cut the balloon so that you have a nice round part left without the long end.

Tape some card behind the barometer and mark where the pin is. To make a tin can barometer you will need a tin can a balloon a rubber band glue two plastic straws or coffee stirrers construction paper and an index card. In part 2 of this series on how to make a barometeryoull find how to make a barometer actually two barometersin much the same way that evangelista torricelli did whenhe invented the barometer in 1643well forget that the original invention came by accident while he was investigatingthe production of a vacuum. We do not want a loose saggy cover.