SOL REVIEW SHEETS Weather, Rocks/Minerals, Mapping These are due Friday

Test Debrief

Upcoming Events  Interactive Achievement  May 17  SOL  May 25  Interactive Achievement  May 17  SOL  May 25

Quiz  Atmosphere, Clouds, Temperature, Humidity  Class Quiz. Everyone will answer at least one question. Whole class gets the grade  Atmosphere, Clouds, Temperature, Humidity  Class Quiz. Everyone will answer at least one question. Whole class gets the grade

Air pressure  Pressure from the weight of the air above a certain point  This can vary depending on the temperature and make up of the air  Areas of high pressure mean that the air is coming down and pressing down more  Areas of low pressure have rising air and will be the ones that cause bad weather  Pressure from the weight of the air above a certain point  This can vary depending on the temperature and make up of the air  Areas of high pressure mean that the air is coming down and pressing down more  Areas of low pressure have rising air and will be the ones that cause bad weather

Air Pressure  Think of air as a liquid. It moves much the same way, we just cannot see it as easily.

How to measure pressure  It is measured using a barometer  Typically they contain a liquid such as mercury with a weight or lid. As the pressure pushes the weight down, it forces the liquid up to give a reading.  The unit of measure is in millibars  Higher number = Higher pressure  Isobars – lines drawn on a map to connect areas of the same pressure  It is measured using a barometer  Typically they contain a liquid such as mercury with a weight or lid. As the pressure pushes the weight down, it forces the liquid up to give a reading.  The unit of measure is in millibars  Higher number = Higher pressure  Isobars – lines drawn on a map to connect areas of the same pressure

Wind  Changes in air pressure cause winds to form  Air wants to shift from areas of high pressure to low pressure  When there is a greater difference of High and Low Pressure, there will be more winds  The direction will be determined by the path the pressure change happens and the Coriolis effect  Changes in air pressure cause winds to form  Air wants to shift from areas of high pressure to low pressure  When there is a greater difference of High and Low Pressure, there will be more winds  The direction will be determined by the path the pressure change happens and the Coriolis effect

Coriolis Effect  Earth’s Rotation causes all free moving objects to be deflected to the right if they are going in a straight path

Weather Fronts  Air Mass- large body of air that has similar temperatures and moisture  Front- The area where two different air masses meet  Often they are classified as warm or cold fronts  Air Mass- large body of air that has similar temperatures and moisture  Front- The area where two different air masses meet  Often they are classified as warm or cold fronts

Warm Front  Warm air moves in on an area that had cold air  Very gradual change and a very low level of slope of change  Usually only cause light-moderate rain over a long period of time  On a weather map these are marked with a red line, or a line with half circles pointing in the direction it is moving  Warm air moves in on an area that had cold air  Very gradual change and a very low level of slope of change  Usually only cause light-moderate rain over a long period of time  On a weather map these are marked with a red line, or a line with half circles pointing in the direction it is moving

Cold Front  Cold dense air moves into an area where warm air was  Typically they are much more steep in the change in weather and move in faster because hot air goes up faster  Can create heavy rain and winds when the front moves over because of the mix of warm and cold air. Once it passes, the temperature drops and the winds calm  Shown on a map with a blue line or a line with triangles pointing to where it is moving.  Cold dense air moves into an area where warm air was  Typically they are much more steep in the change in weather and move in faster because hot air goes up faster  Can create heavy rain and winds when the front moves over because of the mix of warm and cold air. Once it passes, the temperature drops and the winds calm  Shown on a map with a blue line or a line with triangles pointing to where it is moving.

Reading a weather map

Upcoming  Severe storms and climate tomorrow  Test on Weather on Thursday  Severe storms and climate tomorrow  Test on Weather on Thursday

Exit Question  With so many different ways we can predict what the weather will be like, why do meteorologist still get it wrong sometimes?