How to make a Barometer

Do you want to learn how to make a barometer? How to make a barometer science experiment is a middle school science labs experiment which means it is more involved than a regular fun kid experiment.

Learning how to make a barometer can be very rewarding. By learning how to make a barometer, you will learn much about air pressure as well as walking out of a middle school science lab with a working barometer for yourself as a souvenir.

Before we show you how to make a barometer, let's examine what a barometer is and how does a barometer work.

What are barometers? How does a barometer work?

Barometers measure air pressure and provide information about changing weather pattern. A high pressure system barometer usually indicates fair weather without  precipitation and a low pressure system suggests  warmer clothing and possible precipitation. The date you collect from a barometer may be the first warning of cooler temperatures, increased wind and precipitation to come.

What you need to make a barometer

In learning how to make a barometer, you will need:

• medium glass jar with small mouth
• Balloon
• Drinking straw
• 4 pieces of graph paper
• Rubber cement
• Red marker with narrow point

How to make a barometer step - by - step

To make a barometer, follow the steps below:

• Flatten the straw 1 inch (2.5 cm) from the end.
• Cut diagonally from the corner of the flattened end to create a sharp, quill-like point.
• color the tip with a red marker.
• Cut the balloon in half and stretch the balloon across the jar's mouth, securing it with a rubber band to create a tight, drumlike surface.
• Apply a strip of rubber cement along the stretched balloon from the center of the bottle's mouth to the edge and carefully place the unflattened end of the straw there, holding it in place until the glue dries.
• The straw should stick out about 6 inches (15 cm) perpendicularly from the bottle.

<< Previous    [1]  2    Next >>