suggested grade levels: 6- 8
view Idaho achievement standards for this lesson
1. Students will become exposed to the Digital Atlas of Idaho.
2. Students will understand why condensation occurs.
|Pitcher of very cold water||Tray of ice cubes|
Use the climatology section of the Digital Atlas of Idaho. To get there: Click on Atlas Home, Climatology, then on Cloud Imaging. This site of the digital atlas would serve as an excellent review before doing this demonstration for the class. These pages will describe cloud formation, condensation, evaporation, and relative humidity. These concepts are very important for students to understand when talking about cloud formation.
(see link above)
1. Cloud formation
4. Relationship of relative humidity with temperature
Fill the pitcher with cold water and ice cubes. Place the pitcher of ice water in a warm room. Observe what happens on the outside of the pitcher.
1. Where does this water come from?
2. Would covering the pitcher prove that the droplets on the outside did not come from within the container?
3. Why do cold water pipes drip in the summer?
4. Would the amount of moisture that accumulates depend upon the amount of humidity on a particular day?
5. What happens when one blows hot air on a cold windowpane?
6. What do you think this condensation process has to do with rain?
These are links to access the handouts and printable materials.