Unit 3 Review!

Unit 3 covered a lot of weather! It started with learning how to read a weather map, and learning about warm fronts, cold fronts, precipitation, jet stream Ect. A warm front is warm air moving into the region. Because it is less dense than cold air, it moves up over the cold are and creates streaking clouds usually followed by precipitation. A cold air front overtakes cold air pushing it upward, due to the changing in altitudes and temperature the warm air quickly cools creating water vapor which turns into puffy clouds and precipitation. A jet stream is air moving swiftly from west to east across. Then we moved into how to measure rain. It is always measured by height and not volume. Moreover, we dove into equations. Starting with density, volume, mass, all the basics. Then we learned about thermometers and figuring out how to convert temperatures. F to C= 1.8(c)+32. And C to K= C+273. Something Important to know is kinetic theory of gases: - gas particles are constantly moving. - motion is random - speed is not always the same -particles move in straight lines - change directions when they hit each other or walls and lastly, the temperature changes the speeds. Higher temp= faster and excited molecules, lower temps: slower and not excited. Then we moved into the laws and determining when to use which ones. Charles Law= k=v/t, Boyles law: k=p times v, gay Lussac's law= k= p/t. Some important vocab words to know are sublimation, evaporation, condensation Ect. Chemists came up with a system of measurement to determine particles. 1mole= 6.022 times 10*23. And STP. Standard temperature and pressure. Temperature is 273K and 1.0atm. Then we went into another law, ideal gas law which is PV= nRT. Lastly, we went into hurricanes and a bit about global warming. Hurricanes are destructive storms characterized by strong winds and large amounts of rain. Good luck on the midterm everyone!!

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