How to Explain Relative Humidity to Children

High relative humidity in the summer can translate to muggy conditions.
••• hot day on the pier image by Ben Bolton from <a href=''></a>

Relative humidity is the quantity of moisture in the air divided by the quantity of moisture that would saturate the air. However, this definition might be too complex for children to comprehend. After defining the concept to the children, explain to them how to calculate relative humidity in easy-to-understand steps.

    Avoid using technical jargon so as not to confuse the children with the concept. A suitable definition is: Relative humidity is the quantity of water in air compared to the utmost amount of water the air can take in. That value is expressed as a percentage.

    Advice the children on the quantities required for the calculation. The children need to know the mass of moisture in the air at a particular temperature and the maximum mass the air can hold at the same temperature.One method that you could elaborate is measuring the mass of humid air and subtracting the mass of dry air to determine the amount of moisture in the air. Then measure the mass of saturated air and subtract the mass of dry air as well. Keep in mind that these measurements must be performed at the same temperature.

    Explain to the children how to calculate relative humidity. The first step is to divide the mass of moisture in the air by the mass of dry air to obtain the mixing ratio. Direct the children to then divide the mass of saturating moisture by the mass of dry air as well.

    Help the children to divide the mixing ratio of the actual humidity in the air by the mixing ratio of the amount of saturating moisture of the air. Multiply the quotient by 100 to express it as a percentage.

Related Articles

How to Calculate Relative Accuracy
How to Calculate a Mixing Ratio
How to Calculate Dew Point
How to Calculate Condensate Flow From AC Units
The Relationship Between Moisture & Temperature
How to Find the Molar Heat of a Combustion Candle
How to Calculate the Horsepower of a Compressor
How to Calculate Heat of Sublimation
How to Calculate CV Values
How to Convert From Moles Per Liter to Percentage
What is the Mass Percent of Hydrogen in Water?
How to Convert a Mean Score to a Percentage
Cool 7th Grade Science Experiments
How to Determine Moles of Solute
Humidity in Deserts
How to Calculate the Density Ratio
How to Find Mass Percentage
How to Calculate Voidage
How to Calculate the Volume of Voids
How to Do a Simple Calorimeter Experiment

Dont Go!

We Have More Great Sciencing Articles!