Monday, December 1, 2008

What I Have Learned

What I have learned is that water vapor is when water is the gas state.Humidity is the amount of water in the air.Air pressure decreases as altitude increases.
I have also learned about three kinds of clouds.They are the cirrus,stratus,and the cumulus.
The cloud that is named cirrus is a high altitude cloud with a feather like shape made of ice crystals.
The cloud that is named stratus it is a cloud that forms a blanket like layer.The cumulus is a cloud that is a puffy cloud that appears to rise up from a flat surface.
I also know that there is another word for humidity and it is a relative humidity it means that it is the amount in the air compared to how much water in the air could hold.Condensation means that when a gas changes to a liquid.Evaporation means when a liquid changes to a gas.