Understanding Relative Humidity

What does Relative Humidity (RH) measure?

• The amount of water vapor in the air compared to the maximum it can hold

• The temperature of the air

• The pressure of the air

• The wind speed.

Tags

NGSS.MS-ESS2-5

Relative Humidity is expressed as a ______.

• fraction

• percentage

• decimal

• ratio

If the air is holding half the water vapor it can at a specific temperature, what is the relative humidity?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

According to the chart, which range of relative humidity has the highest frequency?

• 26-35%

• 36-45%

• 66-75%

• >80%

Fill in the blank: The range with the lowest frequency in the chart is ______.

• A) 26-35%

• B) 36-45%

• C) 46-55%

• D) 76-80%

What is the frequency of the 56-65% relative humidity range according to the chart?

• 5

• 10

• 15

• 20

Which of the following is NOT a range shown in the Relative Humidity Distribution chart?

• 26-35%

• 36-45%

• 46-55%

• 81-90%

Fill in the blank: The frequency of the >80% range is ______.

• 5

• 10

• 15

• 20

What does a 50% relative humidity indicate?

• The air is holding all the water vapor it can

• The air is holding half the water vapor it can

• The air is holding no water vapor

• The air is holding double the water vapor it can.

Tags

NGSS.MS-ESS2-5

According to the chart, which range has a frequency of 20?

• A) 26-35%

• B) 46-55%

• C) 66-75%

• D) 76-80%