E.7.9A.1, E.7.9A.2, E.79A.3 Weather

IN #1-Read and answer the questions. Buffalo, New York, is famous for its snowstorms, averaging 3 meters of snow each year. Other areas of the world might only get a few centimeters of snow a year. In some parts of the world, it never snows. Why do some areas get less snow than others? How do scientists describe and predict weather?

Weather Vocabulary 1. Weather- is the atmospheric conditions, along with short-term changes, of a certain place at a certain time. 2. Air pressure- the force that a column of air applies on the air or a surface below it. 3. Humidity- the amount of water vapor in the air. 4. Relative humidity-the amount of water vapor present in the air compared to the maximum amount of water vapor the could contain at that temperature. 5. Dew point- the temperature at which air is saturated and condensation can occur.

6. High-pressure system-is a large body of circulating air with high pressure at its center and lower pressure outside of the system. 7. Low-pressure system- is a large body of circulating air with low pressure at its center and high pressure on the outside of the system. 8. Front-a boundary between two air masses. 9. Air mass-are large bodies of air that have uniform temperature, humidity, and pressure. 10. Doppler radar-is a specialized type of radar that can detect precipitation as well as movement of small particles, which can be used to approximate wind speed.

Out: Draw an example of each form of precipitation Out: Draw an example of each form of precipitation. Then, answer the question below. Types of Precipitation Rain Snow Sleet Hail What is the difference between snow and sleet? Now, start on your vocabulary homework.