Reporting and Predicting the Weather Online Exploration

Reporting and Predicting the Weather Online Exploration

1.  Go to www.edheads.org

2.  “Choose An Activity” à “Weather”

3.  Click on “Glossary” and copy the following:

a.  Air Pressure – ALL

b.  Barometer – first 3 sentences, read the rest twice

c.   Cloud formation – first 3 sentences, read the rest twice

d.  Conduction and Convection – read 3 times

e.  Fronts – first sentence, read the rest 3 times

f.     Humidity – first sentence, read the rest

g.  Precipitation – first 2 sentences, read the rest

h.  Radiation and Temperature – read twice

i.      Thermometer – first 2 sentences, read the rest twice

j.      Wind – first sentence, read the rest twice

4.  Report the Weather – 3 Levels (write information in Science Notebook)

5.  Predict the Weather – 3 Levels (write information in Science Notebook)

Air Pressure:     Air pressure, also known as atmospheric pressure, is the weight of air above a given point.  Higher pressures usually mean clear weather because air is sinking toward the earth. Lower pressures usually mean bad weather because air is rising.

Barometer:      A barometer is an instrument used to measure air pressure. Air pressure is usually expressed in units of millibars (mb) or inches of mercury (in. Hg.). At sea level, standard air pressure is 1013.25 mb. or 29.92 in. Hg.

Cloud Formation :    Clouds form as air rises, expands and cools. This expansion and cooling causes condensation to occur. Condensation is simply the process by which water vapor turns to water.

Fronts:      
A front is the transition zone between two different air masses with different temperatures and humidity levels.

Humidity:   

Humidity is the amount of water vapor in the air.