Period+2+Group+5

Response to Investigation 6 Essential Question(s)**
 * Period 2 Group 5

=We can determine that water vapor is in the air by an experiment /lab we did in class. We took a cup of room temperature water and we had another cup of died water with ice it was covered and a thermometer was placed inside. By observing it, we watched and saw water condense on the outside of our cup. we learned that does come from outside air and not from the inside. Liquid water gains molecular motion and evaporates. When water vapors in the air looses energy to any surface the vapors molecules slow and turns to a liquid.= =Humidity is the amount of water vapor in the air. Dew point is the temperature at which a volume of air is saturated. Humidity is measured by a hygrometer and dew point is measured by a wet bulb and dry bulb thermometer lab. In the article it tells me that water vapor in the air is called humidity. I also got the definition for dew point in this article. In the lab the wet bulb went down quicker then the dry bulb. In my notes I wrote that humidity is measured by a hygrometer. Condensation to humidity.= =Clouds and dew both form from water and low pressure. I know this because we did an experiment where we formed clouds in a soda bottle. We learned that water needs to be present along with low temperature and dew point. In order for a cloud to form there needs to be an energy source such as the sun. The water gains energy and evaporates. The higher in air it is the vapors molecular motion transfers to other air molecules allowing more evaporation to occur and become saturated. While pressure is released the temperature will drop and reach dew point. The vapor condenses on a surface known as a condensation nuclei. More and more condensation nuclei join together to form a cloud.=
 * How can we determine that water vapor is in the air and how does it get there? What is humidity and what is dew point and how are each measured? How do clouds and dew form?**